Results of bronchoscopic excision in typical carcinoid tumors of the lung in Turkey

Aim Carcinoid tumors of the lung are the tumors originating from the neuroendocrine cells. Surgical excision remains the gold standard for the treatment. Treatment with interventional bronchoscopic excision has also been reported as an alternative option in typical carcinoid tumors of the lung. The aim of this study was to present results and outcomes in patients who were bronchoscopically treated and followed-up. Methods Data of 14 patients, who had undergone bronchoscopic excision due to typical carcinoid tumor of the lung between April 2008 and July 2015 were retrospectively evaluated. Bronchoscopic excision procedures were performed under general anesthesia, while control bronchoscopies were carried out with flexible bronchoscopy. Time between the first and last bronchoscopies was accepted as the follow-up duration. Results A total of 14 patients was evaluated with eight (57.1%) males. Mean age was 43.57±14.07 (23-68) years. The most common symptoms were shortness of breath and coughing. Mean of 5.69±3.35 (2-12) bronchoscopy procedures were performed in the patients during the diagnosis, treatment and follow-up. Mean follow-up duration was 32.0±19.22 months. At the long-term follow-up, two patients developed 50% stenosis and one patient developed granulation tissue in the endobronchial treatment site. None of the patients developed recurrence during the mean 32-month follow-up. Conclusion Endobronchial treatment is a safe and successful treatment method in well selected typical carcinoid tumor cases that are centrally located, having no radiological suspicion of local or distant metastasis, distally visible but not located on the bronchi with a wide base on bronchoscopy

Seasonal encounter rates and residency patterns of an unstudied population of bottlenose dolphin (Tursiops truncatus) in the northwestern Levantine Sea, Turkey

Insufficient data regarding abundance, distribution and movement patterns of bottlenose dolphins has contributed to lack of effective conservation strategies within the Levantine Sea. It has been inferred that the bottlenose dolphin population has decreased by 30 % in the last 60 years, thus a basin wide research effort on the population is an urgent priority. We present the preliminary results of the first bottlenose dolphin photo-identification study in the northwestern Levantine Sea. 32 boat surveys were conducted from March 2015 to July 2016, totalling 1433 km of survey effort. Current study reported an uneven distribution, high seasonal encounters and varied residency patterns of bottlenose dolphins within the northwestern Levantine Sea. We propose that the northwestern Levantine Sea, specifically the coastal waters of Antalya Bay, indeed is an important bottlenose dolphin habitat and adjacent waters may be of similar significance. Of the 56 individuals catalogued, 13 were re-sighted in both years. Encounter rates varied seasonally, with a peak in spring of 12 groups and 100 individuals per 100 km. Dolphin presence was not detected during autumn and winter. While seasonal, visitor and transient dolphins were reported, no year-round residency was documented. Incidental observations of visible starvation signs and skin parasites suggested individual dolphins in this region could be under anthropogenic stressors. The results reported here highlight the importance of baseline information on encounter rate, distribution and residency pattern as they have a key role on the assessment of population statues and the threats they are facing. Future studies with annual survey effort, have to be continued in the northwestern Levantine Sea and its adjacent waters

Spatial Distribution and Encounter Rates of Delphinids and Deep Diving Cetaceans in the Eastern Mediterranean Sea of Turkey and the Extent of Overlap With Areas of Dense Marine Traffic

Marine traffic has been identified as a serious threat to Mediterranean cetaceans with few mitigation strategies in place. With only limited research effort within the Eastern Basin, neither baseline species knowledge nor the magnitude of threats have been comprehensively assessed. Delineating the extent of overlap between marine traffic and cetaceans provides decision makers with important information to facilitate management. The current study employed the first seasonal boat surveys within the Eastern Mediterranean Sea of Turkey, incorporating visual and acoustic survey techniques between 2018 and 2020 to understand the spatial distribution of cetacean species. Additionally, marine traffic density data were retrieved to assess the overlap with marine traffic. Encounter rates of cetaceans and marine traffic density were recorded for each 100 km2 cell within a grid. Subsequently, encounter and marine traffic density data were used to create a potential risk index to establish where the potential for marine traffic and cetacean overlap was high. Overall, eight surveys were undertaken with a survey coverage of 21,899 km2 between the Rhodes and Antalya Basins. Deep diving cetaceans (sperm and beaked whales) were detected on 28 occasions, with 166 encounters of delphinids of which bottlenose, striped and common dolphins were visually confirmed. Spatially, delphinids were distributed throughout the survey area but encounter rates for both deep diving cetaceans and delphinids were highest between the Rhodes and Finike Basins. While sperm whales were generally detected around the 1000m contour, delphinids were encountered at varying depths. Overall, two years of monthly marine traffic density were retrieved with an average density of 0.37 hours of monthly vessel activity per square kilometer during the study period. The mean density of vessels was 0.32 and 1.03 hours of monthly vessel activity per square kilometer in non-coastal and coastal waters respectively. The Eastern Mediterranean Sea has several important shipping lanes within the study area. Two priority areas for deep diving cetacean and a large priority area for cetaceans were identified in the waters between Marmaris and Finike where high cetacean encounters and dense marine traffic overlapped. The current study revealed important habitats for cetaceans within the data deficient Eastern Mediterranean Sea and delineated potential risk area where marine traffic should be limited

Uzaktan algılama ve coğrafi bilgi sistemleri yardımıyla habitat modelleme : Akça Cilibit populasyonu örneği

TEZ6128Tez (Yüksek Lisans) -- Çukurova Üniversitesi, Adana, 2006.Kaynakça (s.129-136) var.xii, 137 s. : rnk. ; 29 cm.Increasing human activities result pressure on the natural resources. Inventorying the wild life as a one of the most effected natural resource will reveal the magnitude of these detrimental impacts. Wild life inventory together with habitat quality will be informative to the conservation oriented studies. In this respect, habitat of Kentish Plover (Charadrius alexandrinus) bird species which uses Tuzla Lagoon and its surround was modelled considering the human impacts. Three different models including Artificial Neural Networks, Regression Tree and Regression (Multi Linear Regression and Logistic Regression) were used with the support of remote sensing and Geographical Information Systems (GIS). These models were applied to the data set which was collected by a group of biologist collected region between 1996 and 1999. Artificial Neural Networks resulted relatively more accurate than other methods. Within this study the potential of mathematical models for habitat quality estimation was assessed with the support of remote sensing and GIS.Giderek aratan insan faaliyetleri doğal kaynaklar üzerindeki baskıda arttırmaktadır. En çok olumsuz etkilenen doğal kaynakların başında gelen yaban hayatının incelenmesi ve envanterinin belirlenmesi, bu baskıların ne boyutta olduğunun ortaya konulmasını sağlayacaktır. Yaban hayatı envanterinin belirlenmesi ile temel olan habitat kalitesinin de ortaya konması koruma merkezli çalışmalar için ışık tutucu olacaktır. Bu noktadan hareketle insan baskısının yoğun bir şekilde hissedildiği Tuzla Lagünü ve çevresini üreme habitatı olarak kullanan Akça Cılıbıt (Charadrius alexandrinus) kuşunun habitatı çevresel baskılar doğrultusunda modellenmiştir. Çalışmada üç değişik modelleme yöntemi, uzaktan algılama ve Coğrafi Bilgi Sistemleri (CBS) yardımıyla kullanılmıştır. Bu modeller: Yapay Sinir Ağları, Karar Ağacı ve Regresyon analizleridir. Bu yöntemler 1996 ve 1999 yılları arasında bir grup biyolog tarafından Tuzla'da toplanmış verilere uygulanmıştır. Yapay Sinir Ağlarının doğruluğu diğer yöntelere göre daha doğru sonuç vermiştir. Yapılan çalışma ile matematiksel modellerin, uzaktan algılama ve CBS desteği ile habitat kalitesini ortaya koyma konusundaki potansiyelleri belirlenmiştir.Bu çalışma Ç.Ü. Bilimsel Araştırma Projeleri Birimi Tarafından Desteklenmiştir. Proje No:ZF2006YL5

Determining the suitable areas for winter sports by using remote sensing and geographical information systems in Aladağ Region

The aim of this research was to determine the suitable areas for winter sports alternatively to summerhouses and flatlands in Çukurova using remote sensing and Geographic Information Systems (GIS) in the Aladağ region of Toros Mountain. Appropriate areas were determined based on the snow cover, current land use pattern, Digital Elevation Model (DEM) and related outputs (altitude, aspect, slope groups and slope length) within a GIS environment. Landsat TM/ETM and ASTER images were utilised using various remote sensing data. Multi Criteria Analysis (MCA) was used to determine the suitable areas. This enabled the multi criteria integration to the planning process. Initially, physical environmental factors and inputs were identified, and then criteria and constraints were identified considering these variables. Three categorical maps including beginners, moderate and advanced skiers were created by standardising the subjected criteria

The Effect of Pre-service Teachers' Epistemological Beliefs on Teaching Approaches *

Abstract At the beginning of last century, the curriculum based on constructivist approach which is the essential of education reforms has become a foundation to solution seeking. It is obvious that the researches in literature could not provide the desired achievement. Only the existence of programs that are based on student centered approaches are not adequate for the qualified education. Teachers who implement these programs teaching approaches might be appropriate for student centered education perspective. Eventually teachers' teaching approaches affect students' learning styles and their learning process. There are various classifications in literature about teachers' learning and teaching approaches. The two most common classifications are constructivist and traditional approaches. Teachers' learning and teaching perceptiveness are affected by many variables. One of them is epistemological beliefs. Determining teachers' teaching perceptiveness and the epistemological beliefs contribute effective teacher education programs. The success of effort in educational reforms could be possible by pre-service teachers' and teachers' instruction that is based on contribution of epistemological beliefs and teaching approaches. The purpose of this study is to determine the influence of pre-service teachers' epistemological beliefs on teaching approaches. A cross-sectional survey design was employed and data were collected from 990 pre-service teachers in Turkey. Structural equation analysis using Partial Least Squares was used for statistical analysis of the data. Major findings indicated that epistemological beliefs which depend on effort and ability to learn have significant impact on constructivist teaching. The belief reference to existence of an only true has significant effect on traditional teaching. The beliefs which depend on effort have significant negative impact on traditional learning-teaching approach. According to the results of this study, pre-service teachers' believe that learning is based on existence of an only true and innate ability

Türkiye'de ilk siyah altın ve Muhittin Eren örneği

Ankara : İhsan Doğramacı Bilkent Üniversitesi İktisadi, İdari ve Sosyal Bilimler Fakültesi, Tarih Bölümü, 2012.This work is a student project of the The Department of History, Faculty of Economics, Administrative and Social Sciences, İhsan Doğramacı Bilkent University.by Hamdi Özdiş.Özdiş, Hamdi. HIST 200-11, 17, 18ÖZDİŞ HIST 200-11, 17, 18/12 2011-1