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Dobrava hantavirus variants found in Apodemus flavicollis mice in Krklareli Province, Turkey

Polat, Ceylan | Sironen, Tarja | Plyusnina, Angelina | Karatas, Ahmet | Sozen, Mustafa | Matur, Ferhat | Vapalahti, Olli

Article | 2018 | JOURNAL OF MEDICAL VIROLOGY90 ( 5 ) , pp.810 - 818

Hantaviruses infect humans via inhalation of viral particles within secretions of infected rodents or rarely through direct contact with infected rodents. Determining the prevalence of hantavirus infections among rodent populations is of vital importance to obtain information on hantavirus-related cases and to predict possible outbreaks. We hypothesized that DOBV strains circulating in the Thrace Region in Turkey would be related to other Balkan DOBV strains. In this study, hantavirus infections in the rodent population of the Krklareli-neada Region (north-western Turkey, near the Bulgarian border) were investigated. This region is . . .of particular importance, as it is located in the south-eastern margin of the European continent and was used as an entrance point of Asian faunal elements into Europe. DOBV infection was detected in eight of 73 rodents; all were of the Apodemus flavicollis species. Partial sequences of the viral S-, M-, and L-genome segments were recovered and compared with previously reported DOBV sequences. The newly characterized Turkish strains were similar to other DOBV variants. Silent nucleotide mutations were dominant. The hantavirus prevalence in the neada region was similar to what has been reported in Greece and Bulgaria. For the first time, the M-segment sequences of DOBV from Turkey were recovered and genetic data of hantaviruses from Thrace region of Turkey were obtained Daha fazlası Daha az

Dobrava hantavirus variants found in Apodemus flavicollis mice in Kırklareli Province, Turkey

Polat, Ceylan | Sironen, Tarja | Plyusnina, Angelina | Karataş, Ahmet | Sözen, Mustafa | Matur, Ferhat | Vapalahti, Olli | Plyusnin, Alexander | Öktem, Mehmet Ali

Article | 2018 | Journal of Medical Virology90 ( 5 ) , pp.810 - 818

Hantaviruses infect humans via inhalation of viral particles within secretions of infected rodents or rarely through direct contact with infected rodents. Determining the prevalence of hantavirus infections among rodent populations is of vital importance to obtain information on hantavirus-related cases and to predict possible outbreaks. We hypothesized that DOBV strains circulating in the Thrace Region in Turkey would be related to other Balkan DOBV strains. In this study, hantavirus infections in the rodent population of the Kırklareli-İğneada Region (north-western Turkey, near the Bulgarian border) were investigated. This region . . .is of particular importance, as it is located in the south-eastern margin of the European continent and was used as an entrance point of Asian faunal elements into Europe. DOBV infection was detected in eight of 73 rodents; all were of the Apodemus flavicollis species. Partial sequences of the viral S-, M-, and L-genome segments were recovered and compared with previously reported DOBV sequences. The newly characterized Turkish strains were similar to other DOBV variants. Silent nucleotide mutations were dominant. The hantavirus prevalence in the İğneada region was similar to what has been reported in Greece and Bulgaria. For the first time, the M-segment sequences of DOBV from Turkey were recovered and genetic data of hantaviruses from Thrace region of Turkey were obtained. © 2018 Wiley Periodicals, Inc Daha fazlası Daha az

Landslide susceptibility mapping in an area of underground mining using the multicriteria decision analysis method

Arca D. | Kutoğlu, Hakan Şenol | Becek K.

Article | 2018 | Environmental Monitoring and Assessment190 ( 12 ) , pp.810 - 818

Landslides are geomorphological phenomena that affect anthropogenic and natural features on the Earth’s surface. Many previous studies have identified several factors that have contributed to landslides. Among these factors are physical characteristics, such as slope, aspect, and land cover, of Earth’s surface. Moreover, landslides can be triggered by human activities such as underground mining. This study aims to identify landslide susceptibility areas by analyzing landslide-related factors, including land subsidence triggered by underground mining. The area of interest was Kozlu, Turkey, where underground mining has been in progre . . .ss for the past 100 years. Thus, to identify landslide risk zones, the multicriteria decision analysis method, together with the analytical hierarchy method, was used. The datasets included were topography, land cover, geological settings, and mining-induced land subsidence. The spatial extent of land subsidence was estimated using a previously published model. A landslide susceptibility map (LSM) was developed using a purposely developed GIS-based software. The results were compared with a terrain deformation map, which was developed in a separate study using the differential synthetic aperture radar interferometry (DInSAR) technique. The results showed a substantial correlation between the LSM and DInSAR map. Furthermore, it was found that ~ 88% of the very high and high landslide risk areas coincided with location of the past landslide events. These facts suggest that the algorithm and data sources used were sufficient to produce a sufficiently accurate LSM, which may be used for various purposes such as urban planning. © 2018, The Author(s) Daha fazlası Daha az

A multi-source data approach for the investigation of land subsidence in the Konya basin, Turkey

Calò F. | Notti D. | Galve J.P. | Abdikan S. | Görüm T. | Orhan O. | Makineci H.B.

Conference Object | 2018 | International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives42 ( 3W4 ) , pp.129 - 135

Groundwater depletion caused by rapid population growth, global climate change, water resources overexploitation is a major concern in many regions of the world. Consequences are not limited to a non-renewable water loss but extend to environmental degradation and geo-hazards risk increase. In areas where excessive groundwater withdrawal occurs, land subsidence induced by aquifer compaction is observed, resulting in severe socio-economic damage for the affected communities. In this work, we apply a multi-source data approach to investigate the fragile environment of Konya plain, central Turkey. The area, which is under strong anthro . . .pogenic pressures and faces with serious water-related problems, is widely affected by land subsidence. In order to analyze the spatial and temporal pattern of the subsidence process we use the Small BAseline Subset DInSAR technique to process two datasets of ENVISAT SAR images spanning the 2002-2010 period and to produce ground deformation maps and associated time-series. Results, complemented with meteorological, stratigraphic and piezometric data as well as with land-cover information, allow us to obtain a comprehensive picture of the climatic, hydrogeological and human dynamics of the study area. © Authors 2018. CC BY 4.0 License Daha fazlası Daha az

Fauna and flora of drilling and core data from the Iznik Lake: The Marmara and the Black Sea connection

Meric, Engin | Nazik, Atike | Yumun, Zeki U. | Buyukmeric, Yesim | Avsar, Niyazi | Yildiz, Aysegul | Sagular, Enis K.

Article | 2018 | QUATERNARY INTERNATIONAL486 , pp.156 - 184

The study deals with on the Quaternary connection of the Iznik Lake between the Gemlik Gulf and the Black Sea located in the Marmara Region. The core and drilling data were evaluated. They were collected at two locations and depths from drilling cores and at the three deepest locations of the lake. A total of 510 samples were examined from the lake-bottom cores. Ostracod, mollusc, nannoplankton, ascidian spicule, and diatom assemblages observed at different levels of the drillings were studied. No foraminiferal data were recorded. Molluscan association such as Dreissena bugensis, D. caspia, Monodacna pontica, Clathrocaspia makarovi, . . . Euxinipyrgula milachevitchi, Euxinipyrgula lincta indicate Neoeuxinian age. Amnicythere olivia, A. stepanaitysae, A. striatocostata, Tyrrhenocythere amnicola and Loxoconcha immodulata of the ostracod assemblage, exhibiting Ponto-Caspian origin, were found. In addition, fossil ascidian spicules comprising various species of Bonetia, Micrascidites, Monniotia, and Rigaudia genera were encountered, probably representing Late Pleistocene to Holocene ages. Campylodiscus echeneis, Cocconeis placentula var. lineata Epithemia turgida var. granulata, Epithemia adnata, Nitzschia commutate and N. vermicularis, from the diatom assemblage are genera and species also found in the Iznik Lake and in the Black Sea. Mollusc and ostracod fauna, the Ponto-Caspian origin indicates that the Iznik Lake was connected with the Black Sea and the Marmara Sea in the recent period. Thus, the Ponto-Caspian assemblages indicate the early Neoeuxinian (Surozhian) brackish water inundated the study area. Geochronological ages determined by the C-14 method from the deposits occurring at 53-54 m above present sea level in the Iznik Lake indicate the periods of connection via Iznik Lake during 33,630 to 32,920 cal BP (SK-1) and BP 27,335 to 27,070 cal BP (SK-2). When the position of the deposits is compared with the previously available Late Pleistocene C-14 data obtained from the molluscs identified in the nearby Gemlik Gulf at -76 m present water depth and also with the early Khazarian (Middle Pleistocene) age data on the molusc fauna at 130-150 m heights of uppermost terraces above present sea level to NW of the lake, we suggest the influence of a neo-tectonic regime for the occurrence of comparable age deposits at different levels in the region. It may be proposed that a vertical displacement in the order of a 100 m occurred since the late Pleistocene in the Iznik Lake area and the lake acquired its present features as a result of the tectonic movements. (C) 2017 Elsevier Ltd and INQUA. All rights reserved Daha fazlası Daha az

Knowledge and Protective Behaviors About Skin Cancer Among Nursing Students in the West Black Sea Region of Turkey

Çelik S. | Ilçe A. | Andsoy I.I.

Article | 2018 | Journal of Cancer Education33 ( 4 ) , pp.885 - 892

Skin cancer is an important health problem worldwide among cancer types and results in death at a minimum level in the case of early diagnosis. Therefore, the application of prevention programs is vital. Nurses by definition take responsibility for programs in prevention, early diagnosis, and screening for cancer. This study was conducted to determine the extent of skin cancer knowledge and protective behaviors among nursing students in the West Black Sea Region of Turkey. This cross-sectional, descriptive study was conducted between February and May 2015. The study sample consisted of 965 nursing students. Data were collected by me . . .ans of a questionnaire form. Nursing students had a moderate level of knowledge, with average scores of 24.35 ± 3.66. The knowledge levels of first-year students were lowest compared with other years. It was determined that, among nursing students, the percentage of “negative behaviors” in response to skin cancer protective behaviors was higher than for “positive behaviors.” The results of this study highlight the knowledge level and skin cancer protective behaviors of nursing students. Training, seminars, and workshops that teach about risk factors, early detection, protective behaviors, and skin self-examination skills could increase the knowledge level of nursing students. © 2017, American Association for Cancer Education Daha fazlası Daha az

Fauna and flora of drilling and core data from the İznik Lake: The Marmara and the Black Sea connection

Meriç E. | Nazik A. | Yümün Z. | Büyükmeriç Y. | Avşar N. | Yildiz A. | Sagular E.K.

Article | 2018 | Quaternary International486 , pp.156 - 184

The study deals with on the Quaternary connection of the Iznik Lake between the Gemlik Gulf and the Black Sea located in the Marmara Region. The core and drilling data were evaluated. They were collected at two locations and depths from drilling cores and at the three deepest locations of the lake. A total of 510 samples were examined from the lake-bottom cores. Ostracod, mollusc, nannoplankton, ascidian spicule, and diatom assemblages observed at different levels of the drillings were studied. No foraminiferal data were recorded. Molluscan association such as Dreissena bugensis, D. caspia, Monodacna pontica, Clathrocaspia makarovi, . . . Euxinipyrgula milachevitchi, Euxinipyrgula lincta indicate Neoeuxinian age. Amnicythere olivia, A. stepanaitysae, A. striatocostata, Tyrrhenocythere amnicola and Loxoconcha immodulata of the ostracod assemblage, exhibiting Ponto-Caspian origin, were found. In addition, fossil ascidian spicules comprising various species of Bonetia, Micrascidites, Monniotia, and Rigaudia genera were encountered, probably representing Late Pleistocene to Holocene ages. Campylodiscus echeneis, Cocconeis placentula var. lineata Epithemia turgida var. granulata, Epithemia adnata, Nitzschia commutate and N. vermicularis, from the diatom assemblage are genera and species also found in the İznik Lake and in the Black Sea. Mollusc and ostracod fauna, the Ponto-Caspian origin indicates that the İznik Lake was connected with the Black Sea and the Marmara Sea in the recent period. Thus, the Ponto-Caspian assemblages indicate the early Neoeuxinian (Surozhian) brackish water inundated the study area. Geochronological ages determined by the 14C method from the deposits occurring at 53–54 m above present sea level in the İznik Lake indicate the periods of connection via Iznik Lake during 33,630 to 32,920 cal BP (SK-1) and BP 27,335 to 27,070 cal BP (SK-2). When the position of the deposits is compared with the previously available Late Pleistocene 14C data obtained from the molluscs identified in the nearby Gemlik Gulf at -76 m present water depth and also with the early Khazarian (Middle Pleistocene) age data on the molusc fauna at 130–150 m heights of uppermost terraces above present sea level to NW of the lake, we suggest the influence of a neo-tectonic regime for the occurrence of comparable age deposits at different levels in the region. It may be proposed that a vertical displacement in the order of a 100 m occurred since the late Pleistocene in the İznik Lake area and the lake acquired its present features as a result of the tectonic movements. © 2017 Elsevier Ltd and INQU Daha fazlası Daha az

Differences in structure, allergenic protein content and pectate lyase enzyme activity of some Cupressaceae pollen

Sahin A.A. | Aslım B. | Tan S. | Alan S. | Pınar N.M.

Article | 2018 | Turkish Journal of Biochemistry43 ( 4 ) , pp.435 - 446

Objective: Cupressaceae pollen has commonly been reported to be an important aeroallergen and causal factor of spring, autumn and winter pollinosis in many countries. The aim of this study was to compare of the structure and allergenic protein content of Cupressus arizonica Greene., Cupressus sempervirens L. and Juniperus oxycedrus L. pollen in detail and contribute to Cupressaceae pollen allergen diagnosis and therapy studies in Turkey. Methods: The pollen structure were examined by LM and SEM. Pollen protein content was investigated by Bradford protein assay, sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), We . . .stern blot analysis and two-dimensional polyacrylamide gel electrophoresis (2DE PAGE), respectively. Pectate lyase (PL) enzyme activities were compared. Immunoblotting was carried out by using extracts of the three taxa pollen collected from Turkey. Results: All three taxa was found very similar in terms of pollen morphology however, intine thickness was prominently different. Cupressus arizonica pollen extracts showed the lowest PL activity. Five sera specific IgE of all allergic subjects showed reaction with only C. arizonica pollen extracts. Conclusions: As a conclusion, the pollen structure, protein function or protein structure and isoforms of allergens could affects allergenic properties of the pollen. This study also may help to improve the Cupressaceae pollen allergen diagnosis and therapy. © 2018 Turkish Biochemistry Society. All rights reserved Daha fazlası Daha az

Bituminous coal seams from underground mines in the Zonguldak Basin (NW Turkey): Insights from mineralogy, coal petrography, Rock-Eval pyrolysis, and meso-and microporosity

Karayiğit A.İ. | Mastalerz M. | Oskay R.G. | Buzkan İ.

Article | 2018 | International Journal of Coal Geology199 , pp.91 - 112

The Zonguldak Basin contains the main bituminous coal reserves of Turkey (ca 1.4 Gt), and several coal seams are mined in underground coal mines within the basin. This study focuses on coal petrography, mineralogy, Rock-Eval pyrolysis, and the meso-and microporosity characteristics of the coal samples collected from several Late Carboniferous (Pennsylvanian) bituminous coal seams in the basin. Forty channel samples were collected from various coal seams in underground mines at the Armutçuk, Zonguldak, and Amasra coalfields in the Zonguldak Basin. The studied coal samples have low total moisture contents (avg. 2.3%, on as-received ba . . .sis), low total S contents (avg. 0.5%, on dry basis), and relatively high ash yields (avg. 21.2%, on dry basis). The random vitrinite reflectance values (0.69–1.21%) and gross calorific values (avg. 33.0 MJ/kg, on dry, ash-free basis) indicate that the coal samples are of high-volatile C bituminous to medium-volatile bituminous coal. Minerals identified by XRD in bulk coal samples are clay minerals (mainly kaolinite and rarely illite and chlorite), quartz, and carbonates (calcite, dolomite, and siderite). In a few samples, pyrite and feldspar were also identified. The SEM-EDX analyses performed on the carbon-coated polished blocks imply that the carbonate minerals are mainly epigenetic, whereas the silicate minerals are generally syngenetic in origin. The results of low-pressure N2 adsorption analysis indicate that the BET surface areas (1.1–5.5 m2/g) and mesopore volumes (0.003–0.011 cm3/g) vary within a wide range. The results of the low-pressure CO2 adsorption analyses show that micropores are abundant in the coal samples; however, the BET surface areas (10.41–78.11 m2/g) and micropore volumes (0.010–0.049 cm3/g) vary widely among the three coal mines and different coal seams. Our results suggest that variations in the mesopore characteristics are mainly controlled by mineral matter, while microporosity is controlled by a combination of organic matter (maceral compositions) and coal rank of the studied coal seams. © 2018 Elsevier B.V Daha fazlası Daha az

The impact of foreign direct investment on CO2 emissions in Turkey: new evidence from cointegration and bootstrap causality analysis

Koçak E. | Şarkgüneşi A.

Article | 2018 | Environmental Science and Pollution Research25 ( 1 ) , pp.790 - 804

Pollution haven hypothesis (PHH), which is defined as foreign direct investment inducing a raising impact on the pollution level in the hosting country, is lately a subject of discussion in the field of economics. This study, within the scope of related discussion, aims to look into the potential impact of foreign direct investments on CO2 emission in Turkey in 1974–2013 period using environmental Kuznets curve (EKC) model. For this purpose, Maki (Econ Model 29(5):2011–2015, 2012) structural break cointegration test, Stock and Watson (Econometrica 61:783–820, 1993) dynamic ordinary least square estimator (DOLS), and Hacker and Hatem . . .i-J (J Econ Stud 39(2):144–160, 2012) bootstrap test for causality method are used. Research results indicate the existence of a long-term balance relationship between FDI, economic growth, energy usage, and CO2 emission. As per this relationship, in Turkey, (1) the potential impact of FDI on CO2 emission is positive. This result shows that PHH is valid in Turkey. (2) Moreover, this is not a one-way relationship; the changes in CO2 emission also affect FDI entries. (3) The results also provide evidence for the existence of the EKC hypothesis in Turkey. Within the frame of related findings, the study concludes several polities and presents various suggestions. © 2017, Springer-Verlag GmbH Germany Daha fazlası Daha az

Validity and reliability of the Turkish version of the weight self-stigma questionnaire

Erdogan Z. | Kurcer M.A. | Kurtuncu M. | Catalcam S.

Article | 2018 | Journal of the Pakistan Medical Association68 ( 12 ) , pp.1799 - 1804

Objective: To test the validity and reliability of the Turkish version of the Weight Self-Stigma Questionnaire. Methods: The methodological, descriptive study was conducted at the Bulent Ecevit University, Zonguldak, Turkey, from January to June, 2016, and comprised obese patients presenting at the Endocrinology and Diabetes polyclinic tied to the university. Data was collected using patient identification form and Weight Self-Stigma Questionnaire. SPSS 18 was used for statistical analysis. Results: Of the 151 subjects, 97(64.2%) were female and 54(35.8%) were male. Two-factor structure explained 58% of the total variance in the Wei . . .ght Self-Stigma Questionnaire. The Cronbach alpha internal consistency coefficient of the Turkish version was 0.876, indicating high internal consistency. The two factors found in the confirmatory factor analysis had Cronbach alpha values of 0.820 and 0.830. Conclusion: The validity and reliability of Weight Self-Stigma Questionnaire was found to be high in Turkey. © 2018, Pakistan Medical Association. All rights reserved Daha fazlası Daha az

Pollen morphology of Scaligeria DC. (apiaceae) in Turkey

Baldemir A. | Alan Ş. | Şahin A.A. | Paksoy M.Y. | Pinar N.M.

Article | 2018 | Turkish Journal of Botany42 ( 4 ) , pp.462 - 477

In this study, the pollen morphology of all Scaligeria DC. species distributed in Turkey were studied with light and scanning electron microscopy for the first time. The aim is to contribute to knowledge of the variation among seven Scaligeria species, which have taxonomic problems, based on pollen morphological characteristics by population analysis. The pollen is radially symmetrical, isopolar, and tricolporate in all examined species. Pollen grains are prolate and subprolate with the polar axes ranging from 18.4 to 37 µm and the equatorial axes from 9.8 to 30 µm. Their polar shapes are triangular, triangular to subcircular, circu . . .lar to subcircular, or triangular to subtriangular. Several types of exine ornamentations have been observed on pollen by scanning electron microscopy. Numerical analysis showed that pore structure, the ratio of P/E, and ornamentation in the polar and equatorial views are most valuable variables for separating the Scaligeria species. All S. lazica taxa were grouped together and S. capillifolia and S. tripartita were the external taxa due to cluster and PCA analysis. © 2018, Turkiye Klinikleri Journal of Medical Sciences. All rights reserved Daha fazlası Daha az


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