Samsun, Turkey

Ondokuz Mayis University
Samsun, Turkey

Ondokuz Mayıs University is a major state university founded in 1975 in Samsun, Turkey. The university bears the name “19 May”, which marks the date when Mustafa Kemal Atatürk, founder of the Republic of Turkey, came to Samsun in order to start the War of Independence.OMU consists of 16 Faculties, 1 Conservatoire , 3 Schools , 11 Vocational Schools and 5 Institutes . Its 2,175-acre main campus is centred on Atakum municipality in Samsun.Based on University Ranking by Academic Performance data, OMU ranks 14th among Turkish universities with medical schools. Wikipedia.

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Agency: European Commission | Branch: FP7 | Program: CP-TP | Phase: KBBE.2012.1.2-09 | Award Amount: 7.78M | Year: 2012

Benthic ecosystems provide important goods and services, such as fisheries products and supporting, regulation and cultural services. There is serious concern about the adverse impact of fisheries on benthic ecosystem which may negatively affect the fisheries yield and integrity of the sea bed. To develop an integrated approach to the management of human activities in the marine environment, in particular fishing, there is a need to develop quantitative tools to assess the impact of fisheries on the benthic ecosystem and at the same time collaborate with the fishing industry to develop innovative technologies and new management approaches to reduce the impact on benthic ecosystems. BENTHIS will provide the knowledge to further develop the ecosystem approach to fisheries management as required in the Common Fisheries Policy and the Marine Strategy Framework Directive. It will study the diversity of benthic ecosystem in European waters and the role of benthic species in the ecosystem functioning. Fisheries impacts will be studied on benthic organisms and on the geo-chemistry. The newly acquired knowledge will be synthesized in a number of generic tools that will be combined into a fishing/seabed habitat risk assessment method that will be applied to fisheries in the Baltic, North Sea, Western waters, Mediterranean and Black Sea. Fisheries will be selected with the fishing industry based on the impact on the benthic ecosystem. BENTHIS will integrate fishing industry partners to collaborate in testing the performance of innovative technologies to reduce fishing impact. Finally, in collaboration with the fishing industry and other stakeholders, new management approaches will be developed and tested on their effects on the ecosystem and the socio-economic consequences. As such BENTHIS will the urgently needed scientific basis to integrate the role of marine benthic ecosystems in fisheries management.

Sisman A.,Ondokuz Mayis University
Journal of Epidemiology | Year: 2013

Background: Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne infectious disease that has a considerable mortality risk and is a challenge for the population of endemic rural areas and health care workers. This study investigated the epidemiologic features and main risk factors of CCHF in Samsun Province, Turkey, using CCHF cases diagnosed from 2007 to 2011 recorded by the Samsun Provincial Health Directorate. Methods: In the study area, 126 cases were evaluated statistically and spatially. Minitab 16 software was used for statistical analysis of the data, and ArcGIS 9.3 software was used for spatial analysis. Results: Among those who received a diagnosis of CCHF, 69 (54.7%) were male, 57 (45.3%) were female, 114 (90.5%) were discharged, and 12 (9.5%) died. A total of 112 of the 126 (88.9%) cases occurred at an altitude higher than 600 m. In addition, 84.1% of cases were reported during May through July, which are the busiest months for those working in the agriculture and animal husbandry sectors. Conclusions: CCHF causes severe disease and has a high mortality rate (about 10% in Turkey). Early diagnosis of CCHF can be improved by periodic education of people at high risk, ie, men and women working in agriculture and animal husbandry in rural areas and those working in health care.© 2012 by the Japan Epidemiological Association.

Sunbul M.,Ondokuz Mayis University
World Journal of Gastroenterology | Year: 2014

At least 600000 individuals worldwide annually die of hepatitis B virus (HBV)-related diseases, such as chronic hepatitis B (CHB), liver cirrhosis (LC), and hepatocellular carcinoma (HCC). Many viral factors, such as viral load, genotype, and specific viral mutations, are known to affect disease progression. HBV reverse transcriptase does not have a proofreading function, therefore, many HBV genotypes, sub-genotypes, mutants, and recombinants emerge. Differences between genotypes in response to antiviral treatment have been determined. To date, 10 HBV genotypes, scattered across different geographical regions, have been identified. For example, genotype A has a tendency for chronicity, whereas viral mutations are frequently encountered in genotype C. Both chronicity and mutation frequency are common in genotype D. LC and progression to HCC are more commonly encountered with genotypes C and D than the other genotypes. Pathogenic differences between HBV genotypes explain disease intensity, progression to LC, and HCC. In conclusion, genotype determination in CHB infection is important in estimating disease progression and planning optimal antiviral treatment. © 2014 Baishideng Publishing Group Co., Limited. All rights reserved.

Celikler D.,Ondokuz Mayis University
Renewable Energy | Year: 2013

Limited world fossil fuel reserves and the expectation that these reserves will soon be depleted, place increased importance on renewable energy resources. Therefore, it is highly critical to educate pre-service teachers, who will be bringing up future generations of school children, about renewable energy and resources. To that end, a 39 point questionnaire developed by Morgil etal. [1] have been applied to a total of 240 pre-service teachers (60 pre-service teachers each in first, second, third and fourth years) majoring in Elementary Science Teaching at a university in the Black Sea Region of Turkey, and their awareness of renewable energy topics were determined. The study has concluded that while no gender-based meaningful differences exist with respect to the awareness of pre-service teachers for renewable energy [t(238)=0.789, p>05], there are differences based on year-of-study [F(3,236)=16.376, p<.05]. An analysis based on pre-service teachers' years of study has resulted in statistically meaningful (p<.05) differences being found, with respect to awareness for renewable energy, upon comparing third year students with first (p=.000), second (p=.000) and fourth (p=.015) year students, and upon comparing fourth year students with first year students (p=.002). © 2013 Elsevier Ltd.

Pamuk S.,Ondokuz Mayis University
Journal of Computer Assisted Learning | Year: 2012

This study discusses preservice teachers' achievement barriers to technology integration, using principles of technological pedagogical content knowledge (TPACK) as an evaluative framework. Technology-capable participants each freely chose a content area to comprise project. Data analysis based on interactions among core components of TPACK revealed that participants struggled with developing new knowledge. Lack of pedagogical experience limited development of appropriate technology integration approaches. Creating new knowledge bases based on different teaching components can be difficult for preservice teachers because it requires a deep understanding of core knowledge and interpretation of the teaching context and its dynamics. Developing pedagogical content knowledge (PCK) is an important factor in overall technology integration; teachers must make it a priority to acquire PCK before integrating technology. In preservice teacher education, PCK development must be supported with actual teaching experience. We believe that the results of the study may provide valuable insight with respect to proper focus on technology integration and recognizing limitations and challenges within TPACK principles to both those who teach technology integration and those who design TPACK-based activities. © 2011 Blackwell Publishing Ltd.

Yagmur C.,Ondokuz Mayis University
Plastic and reconstructive surgery | Year: 2010

BACKGROUND: The physiopathogenesis of proliferative scarring in human skin is not well understood. Furthermore, knowledge of the precise mechanisms of action for physical treatment modalities is limited. Compression garments, occlusive/adhesive skin taping, and silicone gel sheets are applied to form an occlusion on the scar surface, reduce tension, and/or increase pressure on the scar itself. The mechanisms by which the external or superficial actions of these treatments cause remission of a protruding scar may be related to mechanoreceptor (nociceptor and cellular mechanoreceptor) responses. METHODS: Basic research studies about mechanoreceptor-related (nociceptors and cellular mechanoreceptors, separately) events are reviewed and discussed based on proliferative scarring background. Scar management-related studies were corrected from the standpoint of mechanotransduction mechanisms. The methodologic quality of the clinical trials and basic studies was evaluated and reviewed. RESULTS: It was suggested that many of the physical scar management methods, including compression therapy, silicone therapy, adhesive tape, and occlusive dressing therapy, are related to mechanotransduction mechanisms. CONCLUSIONS: A unifying perspective of basic research findings and clinical observations may be obtained by considering the mechanoreceptor-related events in scar management. Moreover, a precise understanding of the roles that cellular mechanoreceptors and mechanosensitive nociceptors play in proliferative scarring may lead to the development of innovative treatment strategies and new pharmacologic therapies targeting cellular mechanoreceptors and mechanosensitive nociceptors in fibroproliferative diseases.

Multivariate statistical techniques such as cluster analysis and principal component analysis were performed on 28 groundwater wells in Bafra Plain. Cluster analysis results show that the groundwater in the study area is classified into three groups (A, B, and C), and factor analysis indicates that groundwater is composed of 89.64 % of total variance of 12 variables and is mainly affected by three factors. Factor 1 (seawater salinization) includes concentrations of electrical conductivity, TDS, Cl-, Na+, and sodium adsorption ratio, factor 2 (mixing water) includes δ18O, δD, and T, and factor 3 (fresh) includes Ca 2+. For determination of the source of water, Ca/Cl, Cl/HCO 3, Mg/Cl, and Ca/Na as initials and Mg/Ca and SO4/Cl as molar rates which were identified, the rates had been found to be very useful. Cluster analysis was made by using these rates and the waters were classified in two groups (group 1 and group 2). First group waters were affected by seawater, and the second group were very less affected by freshwater or seawater. According to the comparison of two different parameters, group 1 comprised group A and group B-2, -3, and -4 from the same wells, and group 2 comprised group B-1 and group C from the same well. As a result of this study, it could be said that multivariate statistical methods gave very useful results for the determination of the source. © 2012 Springer Science+Business Media B.V.

Poly(ethylene-oxide) PEO/clay/silica nanocomposites were prepared via solution intercalation by exploiting phase separation based on the bridging of particles by polymer chains. The intercalated morphology of nanocomposites was confirmed by XRD. Vibrational modes of the ether oxygen of PEO in the hybrids are shifted due to the coordination of the ether oxygen with the sodium cations of clay and the H-bonding interactions of the ether oxygen with the surface silanols of hydrophilic fumed silica. Based on SEM, the overall density of nanoparticle aggregates in the interspherulitic region was observed to be higher compared to that inside spherulites. PEO/clay/silica hybrids show significant property improvements compared to PEO/clay hybrids and pure PEO. The system containing 10 wt.% clay and 5 wt.% silica has substantially higher modulus and much lower crystallinity compared to the 15 wt.% clay system. The physics behind the reinforcement effect and the reduction of crystallinity as a function of fumed silica loading is discussed based on the morphological characterization of the hybrids. Lastly, PEO/clay/silica hybrids display good thermal stability and are much stiffer compared to pure PEO and PEO/clay nanocomposites. © 2011 Elsevier Ltd. All rights reserved.

Leblebicioglu H.,Ondokuz Mayis University
International Journal of Antimicrobial Agents | Year: 2010

Crimean-Congo haemorrhagic fever (CCHF) is a tick-borne infectious disease characterized by fever, malaise, headache, nausea, vomiting, diarrhoea, sore throat, muscle aches, haemorrhage and thrombocytopenia. It is a challenge for the population of endemic rural areas, and for healthcare workers, and carries a considerable mortality. The disease is widely distributed in Africa, Europe and Asia, and has become a serious threat to public health in Eurasia. The intention of this review is to summarize the current status of CCHF in Eurasia. © 2010 Elsevier B.V. and the International Society of Chemotherapy.

Coban A.Y.,Ondokuz Mayis University
Journal of Clinical Microbiology | Year: 2012

In the present study, the effectiveness of a rapid and colorimetric nitrate reductase analysis (NRA) method and resazurin microplate assay (REMA) for rapid determination of methicillin resistance among Staphylococcus aureus was investigated. A total of 275 clinical isolates of S. aureus were included in the present study. Among these isolates, 151 had the mecA gene and were resistant to methicillin. The remaining 124 isolates were methicillin susceptible and did not have the mecA gene. Cefoxitin MICs of all isolates were detected by NRA, REMA, and reference broth microdilution methods. Category and essential agreement were determined as 100% and 99.6%, respectively, comparing both NRA and REMA with the reference method. No minor, major, or very major discrepancy was observed for either of the methods. The time necessary to have the MIC results was 5 h for NRA, whereas it was 6 h for REMA. Early detection of MRSA is an important public health concern, and the results of this study showed that both of the colorimetric methods are easy to perform and save time in the determination of MRSA. These methods have a potential use for early detection of MRSA for laboratories unable to use molecular techniques. Copyright © 2012, American Society for Microbiology. All Rights Reserved.

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