01. Araştırma Çıktıları | WoS | Scopus | TR-Dizin | PubMed
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Review Citation - WoS: 25Citation - Scopus: 29Aerogels as Promising Materials for Antibacterial Applications: a Mini-Review(ROYAL SOC CHEMISTRY, 2021) Kaya Güzel, Gülcihan; Aznar, Elena; Deveci, Hüseyin; Martinez-Manez, RamonThe increasing cases of bacterial infections originating from resistant bacteria are a serious problem globally and many approaches have been developed for different purposes to treat bacterial infections. Aerogels are a novel class of smart porous materials composed of three-dimensional networks. Recently, aerogels with the advantages of ultra-low density, high porosity, tunable particle and pore sizes, and biocompatibility have been regarded as promising carriers for the design of delivery systems. Recently, aerogels have also been provided with antibacterial activity through loading of antibacterial agents, incorporation of metal/metal oxides and via surface functionalization and coating with various functional groups. In this mini-review, the synthesis of aerogels from both conventional and low-cost precursors is reported and examples of aerogels displaying antibacterial properties are summarized. As a result, it is clear that the encouraging antibacterial performance of aerogels promotes their use in many antibacterial applications, especially in the food industry, pharmaceutics and medicine.Other Ancient Karez System in Afghanistan: the Perspective of Construction and Maintenance(2019) Himat, Abobakar; Doğan, SelimAncient Karez has a history of millennium. Karez is underground tunnel which is constructed in ground by digging the main well of the system and extending underground tunnel in foothills of the mountains. This system extracts groundwater to surface by gravity without using any pumping equipment. Ancient Karez system is viable in hot, arid and semi-arid climate regions. These systems are one of the best ways of extracting groundwater by gravity in such poor regions. Minimum slope is vital for extracting groundwater to the surface in Karez system. In this study, the perspective of construction and maintenance of Karez system in Afghanistan is assessed. Information related to Karez construction and maintenance is provided in order to improve the quality of work during these processes. The Karez system cannot be used effectively if construction and maintenance processes are not carried out properly. This will affect agricultural productions, water supply and social life in the region. Some possible solutions are suggested for the mitigation of the risk of collapsing and extinction of Karez systems. Some recommendations are provided to encourage the associated organizations in Afghanistan for rehabilitation of Karez irrigation and water supply system.Research Project Antibakteriyel Nanokaplama Teknolojilerinde Mükemmeliyet için Ingiltere-türkiye Isbirligi(2019) Öztürk, Agah Bahadır; Karaman, Mustafa; Dağı, Türk HaticeBu çalısmada kuaterner amonyum fonksiyonel grubu içeren polimerik ince filmler baslatıcılı kimyasal buhar biriktirme (iCVD) teknigi ile farklı alttaslar üzerinde sentezlenmistir. iCVD tekniginde baslatıcı olarak ter bütil peroksit kullanarak poli(dietilaminoetil metakrilat) (PDEAEMA) homopolimer ve poli(dietilaminoetil metakrilat-ko-vinilbenzil klorür) (P (DEAEMAVBC)) kopolimer kaplamaları yapılmıstır. FTIR ve XPS analizleri yapılarak, reaktör girisindeki monomer besleme akıs hızı oranlarının degisimi ile kaplanan filmlerin kimyasal yapılarının ayarlanabildigi gösterilmistir. Kopolimer içerisindeki DEAEMA monomerinden kanaklanan tersiyer amin fonksiyonel grubu antibakteriyel aktivite için gereklidir. PDEAEMA homopolimeri oksijen plazma muamelesi ile kuru bir sekilde protonlanabilmistir. Diger yandan P(DEAEMA-VBC) kopolimeri ilave bir protonlama asamasına ihtiyaç duymamıstır çünkü polimerin tersiyer amin grubu, VBC yapısındaki klor fonksiyonelligi tarafından kolayca protonlanabilmektedir. Hem homo hem de ko-polimerler, kaplanan polimerdeki protonlanmıs azot atomlarının yogunluguna baglı olarak cam, PET levha ve kumas olmak üzere üç farklı alttas üzerinde yüksek antibakteriyel aktivite göstermistir Scotch bantı soyma testi uygulanmıs ve neticesinde kopolimer filmlerin yapısma ve dayanıklılıgının homopolimer filme göre üstün oldugu dogrulanmıstır. En dayanıklı olarak belirlenen kopolimer film gram negatif ve gram pozitif bakterilere karsı çok yüksek log eksiltme degeri göstermistir. Hücre canlılıgı analizine neticesinde bu çalısmada iCVD ile kaplanan antibakteriyel filmlerin toksik olmadıgı kanıtlanmıstır. Çalısmanın ikinci bölümünde bir çekirge türü olan Bradyporus (Callimenus) göçmeninin yumurta kabugundan esinlenerek biyobenzetim ile antibakteriyel yüzey tasarımı gerçeklestirilmistir. Bu amaçla, yumusak litografi yöntemiyle yumurta kabugu yapılarına benzer nano/mikro yapılı esnek yüzeyler üretilmistir. Daha sonra, üretilen yüzey yapıları iCVD teknigi kullanılarak antibakteriyel ince film ile kaplanmıstır. Elde edilen kopyalar, bakteri popülasyonunda 7 log eksiltme degerine kadar ulasan antibakteriyel aktivite ve oldukça yüksek su iticilik göstermistir. Proje yaygınlastırma faaliyetleri kapsamında antibakteriyel.ktun.edu.tr web sitesi yayınlamıs olup, burada proje kapsamında hazırlanan Antibakteriyel Yüzeyler Durum Raporları yayınlanmıstır. Ayrıca, antibakteriyel yüzeylerin öneminin anlatıldıgı projede görev alan ögrenciler tarafından hazırlanan videolar Functional Surfaces youtube kanalında yayınlanmıstır. Proje kapsamında gerçeklestirilen çalıstaylara ait bilgi ve görseller ile; proje yaygınlastırma faaliyetlerine ait diger çalısmaların detayları da proje web sitesine eklenmistir.Review Citation - WoS: 9Citation - Scopus: 11Assessment of Suitable Shrimp Farming Site Selection Using Geographical Information System Based Analytical Hierarchy Process in Turkey(Elsevier Ltd, 2023) Akdeniz, H.B.; Yalpir, S.; Inam, S.In the last century, the increasing global population and the demand for animal food have caused the limit of the fishing and wild harvest production capacity to be reached. In order to ensure sustainability in the fishing and wild harvest, it is necessary to focus on aquaculture activities. When it is planned to open a new aquaculture facility, the first step to be taken is to determine the most suitable establishment site. Suitable site selection affects both the success and sustainability of any aquaculture development. The aim of this study is to determine the most suitable areas to establish shrimp farming facilities in the Mediterranean Region of Turkey by using Analytical Hierarchy Process (AHP) which are among the Multi-Criteria Decision-Making methods and Geographic Information Systems. In the first stage, analyses of airports, ports, hotels and feed mill businesses in the Mediterranean Region were conducted. Second stage study was performed on the most suitable area determined as a result of the analysis. Within the scope of this purpose, eleven sub-criteria that will affect the facility location were determined under three main criteria (land, water availability, infrastructure and socio-economic). Constraint criteria were determined to exclude areas where shrimp farming facilities are not allowed to be established. As a result of the analysis, it was specified that 0.01% of the study area is highly suitable, 0.87% suitable, 4.69% moderately suitable and 94.43% unsuitable. This study showed that the AHP method and geographical information system techniques are applicable in the selection of suitable areas for greenhouse shrimp farming. © 2022 Elsevier LtdOther Atıksu Arıtma Tesislerinde Mikrokirleticilerinizlenmesi ve Kontrolü(2019) Kara, Meryem; Nas, Bilgehan; Argun, Mehmet Emin; Yel, Esra; Dinç, Saliha; Koyuncu, SerdarYerüstü ve yeraltı sularında su kalitesinin belirlenmesi için AB Su Çerçeve Direktifindeki 45 öncelikli maddede yer alan MK?lerin izlenmesi yönünde araştırmalar hızlanmıştır. Su kütlelerinde MK?lerin önemli kaynaklarından biri atıksu arıtma tesisleri (AAT)?dir. Bu projede, küçük, orta ve büyük ölçekli 3 yerleşim yerinde 3 farklı arıtma prosesinde MK?ler 1 yıl süreyle izlenmiş ve proseslerin MK?leri giderme performansları ortaya konulmuştur. MK gruplarından; pestisit (Kloropirifos, Atrazin, Klorfenvinfos), fitalat ester (BBP, DEHP, DnOP), yüzey aktif madde (Oktil fenol, Nonil fenol), PAH (Benzo[b]fluoranten, Benzo[k]fluoranten, Benzo(a)piren, Indeno[1,2,3-cd]piren, Benzo[g,h,i]perilen, Fluoranten, Antrasen, Naftalin), VOC (Diklorometan, Benzen, 1.2-dikloroetan), ilaç etken madde (Diklofenak, Karbamazepin, 17-beta-estradiyol, 17-alfa-etinilestradiol) ve ağır metallerden (Cd, Pb, Hg, Ni) toplam 27 MK izlenmiştir. Konya (İleri biyolojik arıtma), Ereğli (Anaerobik ve fakültatif stabilizasyon), Zincirlikuyu (Yapay sulak alan) AAT?lerinden, atıksu geri kazanım tesisinden, pilot ölçekli ultrafiltrasyon (UF), nanofiltrasyon (NF) ve ters osmoz (RO) ünitelerinden oluşan membran tesisten her numune alma döneminde 17 su, 6 çamur numunesi alınarak GC/MS, LC/MSMS ve ICP/MS?de MK ölçülmüştür. Tesislerin ve arıtma proseslerinin MK verileri arasındaki ilişkilerin anlamlılığının istatistiksel olarak ortaya konulabilmesi için saçılma diyagramları, kutu diyagramlar, varyans analizi ve Korelasyon hesaplamaları yapılmıştır. Atıksularda en yüksek konsantrasyonda tespit edilen MK?ler; sırası ile Ni, DEHP, Nonil fenol, Naftalin, Pb ve Diklofenak?dır. VOC?ler en düşük konsantrasyondadır ve görülme sıklığı çok düşüktür. Her üç AAT?de arıtılmış atıksuda; Ni, Pb, Hg, DEHP, Nonil fenol, Naftalin, Diklofenak, Karbamazepin hariç olmak üzere diğer MK?ler 100 ng/L?den düşüktür. %80?in üzerinde verimle arıtılan MK?ler Konya AAT?de Oktil fenol (%93,4), Nonil fenol (%92,7), Atrazin (%92,1), Naftalin (%91,5) ve DEHP (%89,3); Ereğli AAT?de Atrazin (%83,8)?dir. Zincirlikuyu AAT?de hiçbir parametrede %80?den fazla giderim gerçekleşmemiştir. Konya AAT?de Karbamazepin ve Ni, Zincirlikuyu AAT?de Nonil fenol negatif kütle dengesi görülen ve çıkış suyunda konsantrasyonları artan MK?lerdir. Membran proseslerden, UF?in MK gideriminde etkin olmadığı, NF?in 17 MK?de %50?den fazla giderim sağladığı görülmüştür. RO, NF?den sonra bazı MK?lerde ilave giderim sağlamıştır.Erratum Citation - WoS: 3Citation - Scopus: 14Author Correction: a Portrait of the Higgs Boson by the Cms Experiment Ten Years After the Discovery (nature, (2022), 607, 7917, (60-68), 10.1038/S41586-022-04892-x)(Nature Research, 2023) Tumasyan A.; Adam W.; Andrejkovic J.W.; Bergauer T.; Chatterjee S.; Damanakis K.; Dragicevic M.; Gürpınar Güler, Emine; Güler, YalçınCorrection to: Nature Published online 4 July 2022 In the version of this article initially published, CMS Collaboration author names, affiliations and acknowledgements were omitted and have now been included in the HTML and PDF versions of the article. © 2023, The Author(s).Review Citation - WoS: 5Citation - Scopus: 5The Backstage of Twice-Exceptionality: a Systematic Review of the Movies(Routledge Journals, Taylor & Francis Ltd, 2022) Atmaca, Furkan; Yağbasanlar, Osman; Yıldız, Erol; Göncü, Ahmet; Baloğlu, MustafaTwice-exceptional individuals (2e) are highly gifted/talented or creative but have a disability in at least in one developmental area. In order to reveal more about the condition we systematically reviewed movies that depict 2e individuals to reveal how they are portrayed. Eight movies were analyzed in depth. The selected movies were independently watched and encoded. As a result, a total of 54 codes were generated, which were combined under six themes, most themes having two categories (i.e., positive versus negative or strengths versus weaknesses). Despite being perceived more positively on the cognitive themes, they are portrayed mostly negatively on the socioemotional and behavioral themes. The movies conveyed significant messages about the educational lives and familial difficulties of these individuals.Correction Biocompatible Sugar Beet Molasses Carbon Dots as Potential Elicitor To Improve Bioactive Compounds of Wheatgrass Juice (Vol 24, Pg 4935, 2024)(Springer int Publ Ag, 2025) Kara, Meryem; Dinc, Saliha; Altunbas, Osman; Karasahin, Muhammet; Gunhan, Rabia SerpilResearch Project Çift Taraflı Sac Hidroşekillendirmede Yükleme Eğrilerinin Adaptif Kontrolle Optimize Edilerek Şekillendirilebilirliğin Artırılması(2020) Halkacı, Hüseyin Selçuk; Türköz, Mevlüt; Dilmeç, MuratBu projede, Çift Taraflı Hidrosekillendirme yöntemini kullanarak, oda sıcaklıgında, derin çekmede günümüz teknolojisiyle mümkün olan, en yüksek sekillendirilebilirliklere ulasmak ve sekillendirilmesi zor parçaları üretebilmek için gerekli olan temel bilimsel çalısmalar yapılmıstır. Çoklu proses parametreleri ve sekillendirilebilme arasındaki iliskiler optimizasyon yapılarak ortaya konulmustur. Günümüzde ÇTHS üzerinde yeni yeni çalısmalar yapılmakta olup, proses parametreleri; sınırlı sayıda geometri için teorik yaklasımlar ve genellikle dar bir bölgede deneme yanılma ile deneysel çalısmalarla belirlenmektedir. Bu çalısmada ise proses parametreleri malzeme ve sekilden bagımsız olarak analizlerde adaptif kontrol kullanılarak belirlenmistir. Bu yöntem literatürde ÇTHS için henüz hiç uygulanmamıstır. Bu proje kapsamında, laboratuvarda bulunan üç eksen kontrollü hidromekanik derin çekme presi, destek basıncını da kontrol edecek tarzda, dört eksen kontrollü hale getirilmis ve ÇTHS prosesi gerçeklestirilmistir. Iç basınç, destek basıncı, baskı plakası kuvveti ve ıstampa pozisyonu parametrelerinin es zamanlı kontrolü için mekanik, hidrolik ve elektronik kontrol sistemi modifiye edilmistir ve sistemin performans deneyleri gerçeklestirilmistir. ÇTHS prosesi sonlu elemanlar metoduyla modellenerek, analizlerde adaptif kontrol saglamak için bulanık mantık algoritmaları gelistirilmistir. Bulanık mantık algoritmalarının analizlerde kullanılmasıyla, elde edilen optimum yükleme egrileri ile deneyler yapılarak elde edilen sonuçlar karsılastırılmıstır. Analizlerin güvenilirlikleri belirlenmis ve parametrelerin prosese etkisi deneysel olarak arastırılmıstır. AISI 304 paslanmaz çelik malzeme için tek taraflı hidrosekillendirme prosesinde olusan burusma problemi ortadan kaldırılarak prosesin basarısı/avantajları ortaya konulmustur. Böylece TÜBITAK tarafından hazırlanan ?Ulusal Bilim ve Teknoloji Politikaları, 2003-2023 Strateji Belgesi? raporundaki ?Hedef 2016: Sac ve boru hidroform islemleriyle yapılan parçalarda Avrupa'da üç tedarikçi ülke arasına girmek? hedeflerine ulasmak için yapılması gereken temel bilimsel çalısmalara önemli katkılar saglandıgı düsünülmektedir.Conference Object Citation - Scopus: 1Comparison of Architectures of Deep Learning-Based Segmentation in Lower Extremity Human Thermal Imaging(Springer Science and Business Media Deutschland GmbH, 2025) Yaşar M.C.; Çevik M.; Besnili Ş.; Ceylan M.Segmentation is the process of distinguishing the desired area in an image from the background and other objects. With the development of deep learning methods, the importance of segmentation has increased, and it is now used in many fields such as medicine, industry, and autonomous systems. In this study, binary segmentation was performed on a dataset prepared with human lower extremity thermal images, and the detection of specified regions was achieved. Five different deep learning-based models were specifically designed for the problem and trained using the cross-validation method. The obtained results were recorded, and their performances were compared. Among the created models, the MCRNet model achieved the best result on the test data with a 97% Dice Similarity Coefficient, 94% Jaccard Index, and 0.12 BCE Loss value. This study was conducted to improve the analysis of athlete injuries on thermal images and to compare models that achieve accurate and efficient segmentation results. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.Correction Comparison of Epithermal Kaolin Deposits From the Etili Area (canakkale, Turkey): Mineralogical, Geochemical, and Isotopic Characteristics (vol 70, Pg 753, 2022)(Springer, 2022) Ercan, Hatice Unal; Ece, O. Işık; Çiftci, Emin; Aydın, Ayça[No abtract available]Erratum Corrigendum To “Experimental Investigation and Analytical Verification of Buckling of Functionally Graded Carbon Nanotube-Reinforced Sandwich Beams” [Heliyon Volume 10, Issue 8, April 2024, Article E28388](s2405844024044190)(10.1016/J.heliyon.2024.e28388)(Elsevier Ltd, 2025) Madenci, E.; Özkılıç, Y.O.; Bahrami, A.; Aksoylu, C.; Asyraf, M.R.M.; Hakeem, I.Y.; Fayed, S.In this article, reference [52] was included in error: [52] E. Payton, J. Khubchandani, A. Thompson, J.H. Price, Parents’ expectations of high schools in firearm violence prevention, J. Community Health 42 (2017) 1118–1126. The correct version of the reference is as below: [52] Senjanović, I., Vladimir, N., Hadžić, N., & Tomić, M. (2016). New first order shear deformation beam theory with in-plane shear influence. Engineering Structures, 110, 169-183. https://doi.org/10.1016/j.engstruct.2015.11.032 The authors apologize for the error. © 2025Review Citation - WoS: 17Citation - Scopus: 20Creep Properties and Analysis of Cross Arms' Materials and Structures in Latticed Transmission Towers: Current Progress and Future Perspectives(MDPI, 2023) Asyraf, Muhammad Rizal Muhammad; Rafidah, Mazlan; Madenci, Emrah; Özkılıç, Yasin Onuralp; Aksoylu, Ceyhun; Razman, Muhammad Rizal; Ramli, ZuliskandarFibre-reinforced polymer (FRP) composites have been selected as an alternative to conventional wooden timber cross arms. The advantages of FRP composites include a high strength-to-weight ratio, lightweight, ease of production, as well as optimal mechanical performance. Since a non-conductive cross arm structure is exposed to constant loading for a very long time, creep is one of the main factors that cause structural failure. In this state, the structure experiences creep deformation, which can result in serviceability problems, stress redistribution, pre-stress loss, and the failure of structural elements. These issues can be resolved by assessing the creep trends and properties of the structure, which can forecast its serviceability and long-term mechanical performance. Hence, the principles, approaches, and characteristics of creep are used to comprehend and analyse the behaviour of wood and composite cantilever structures under long-term loads. The development of appropriate creep methods and approaches to non-conductive cross arm construction is given particular attention in this literature review, including suitable mitigation strategies such as sleeve installation, the addition of bracing systems, and the inclusion of cross arm beams in the core structure. Thus, this article delivers a state-of-the-art review of creep properties, as well as an analysis of non-conductive cross arm structures using experimental approaches. Additionally, this review highlights future developments and progress in cross arm studies.Correction D2d-V2x Taxonomy and Architecture Towards 5g Mobile Communication (vol 9, Pg 155507, 2021)(Ieee-Inst Electrical Electronics Engineers Inc, 2021) He, Ying; Khan, Habib Ullah; Zhang, Kai; Wang, Wei; Choi, Bong Jun; Aly, Ayman A.; Aydoğdu, Ömer[No Abstract Available]Review Citation - WoS: 23Detrimental Effects of Commonly Used Textile Dyes on the Aquatic Environment and Human Health - a Review(Parlar Scientific Publications (P S P), 2022) Yıldırım, Özlem Altıntaş; Bahadır, Mufit; Pehlivan, ErolProperties and hazards of various dye and pigment families used during textile manufacturing (like yarns, cloths, nonwovens, outerwear, cashmere and rugs) are already reported in the literature. Synthetic organic dyes are currently known as water pollutants. Such dyes are widely used in a variety of industries, including textiles, tanning, cosmetics, and food stuff, as well as in human and veterinary healthcare. They are classified as reactive, dispersed, indigo, azo, sulphur, and basic dyes. They are found in liquid wastes from textile washing and pose a serious risk to the receiving water environment's quality, if not purified. Because of their widespread use and large-scale production, various synthetic dyes have found their way into various parts of the water and soil ecosystems. In fact, because these dyes and pigments are not biodegradable, their presence can cause drastic changes in the ecological conditions of aquatic animals and plants. This will have a negative impact on the aquatic environment's stability, resulting in serious and significant damages (algal blooms, oxygen depletion, colour, turbidity and bad smells), long-term dangers (persistence, bioaccumulation of cancer-causing aromatic products, and emergence of chlorination side products), and carcinogenic and teratogenic effects. This overview picks up scientific information on possible application fields, toxic effects, sources, environmental presence and the eventual demise of synthetic organic dyes, as well as the ecological effects of synthetic natural dyes existence in the general environment.Other Developing Turbulent Flow in Pipes and Analysis of Entrance Region(2021) Canlı, Eyüb; Bilir, Ali Şefik; Bilir, ŞefikTurbulent flows have complex structures due to its nature and its’ analyses are hard either by numerical or experimental means. Hydrodynamic development of turbulent flow is also complex. In this study, velocity and turbulence distributions in hydrodynamic entrance length of pipes are investigated numerically depending on axial and radial locations. Implications of these distributions are qualitatively evaluated in terms of heat transfer. Literature was surveyed for a single empirical expression that provides velocity profile directly according to Reynolds number, radial and axial locations. Requisite for computational fluid dynamics in hydrodynamic entry length of pipes is stressed by assessing turbulence magnitudes in radial and axial directions. Definition of the development length and effects of the definition in respect of heat transfer are discussed. An axisymmetric pipe entrance region was analyzed by means of a commercial CFD code with nondimensional parameters. Therefore, dimensional parameters reduce into one dimensionless independent parameter, i.e. Reynolds number. Four different Reynolds numbers that are 5x103 , 1x104 , 5x104 , 1x105 were used in calculations. k-? turbulence model and standard wall functions were used for turbulence modeling. Hydrodynamic entry length, velocity and turbulence values are presented by means of axial and radial profiles. According to the obtained results, two different directions of radial velocity component values exist in the hydrodynamic entry length that would lead to different radial thermal convection effects. It is found that simultaneously developing velocity profiles and turbulence quantities leads to a characteristic centerline velocity profile. Also, it is seen that a good resolution in hydrodynamic entrance length can be easily achieved by computational fluid dynamics. A detailed composition of hydrodynamic turbulent entrance length analysis, its physical explanations due to simultaneously developing hydrodynamic boundary layers and turbulence production, definition aspects of the entrance length in terms of heat transfer and literature survey for analytical solution of the region are provided.Note The Development and Future of Studies in Urban Morphology(International Seminar on Urban Form, 2024) Topçu, M.; Arat, M.A.[No abstract available]Review Citation - WoS: 1Development Process of Reconstruction Implementation Legislation in Turkey(Geomatik Journal, 2022) Çay, Tayfun; Kandemir, Esra SonelIn this study, legislation and amendments of first zoning law the of Republic of Turkey was published in 1985 to until present day was examined and the development process in the legislation was considered. There are many issues regarding zoning in the zoning legislation. And Many changes have been made over the years. In the study, while considering this development process, especially legal regulations and amendments for zoning implementations, development readjustment share rate and content and zoning amnesties brought to buildings against the zoning legislation were emphasized. The Zoning Laws in Turkey until today, are constructed according to the principle of equal proportion method. However, alternatively, as a necessity the method based on equivalence principle was recommended to be regulated and development readjustment share rate that should be determined according to the equivalence method was proposed.Other Duodenal Varices Diagnosed by Endoscopic Ultrasound: a Case Report(2017) Bıyık, Murat; Asil, Mehmet; Ataseven, Hüseyin; Polat, Hakkı; Demir, Ali; Dertli, RamazanPortal hypertension and associated complications cause significant morbidity and mortality in cirrhotic patients. Variceal development is the most important portal hypertension related complication. Varices most commonly occur around the gastroesophageal junction, but ectopic varices may develop in many gastrointestinal and extra-gastrointestinal localizations. Duodenum is one of the most common localizations for ectopic varices. Diagnosis of duodenal varices is usually made by upper gastrointestinal endoscopy, but endoscopic appearance is not diagnostic and usually further investigations are required in order to make accurate diagnosis. Endoscopic ultrasound is the gold standard method for the examination of gastrointestinal submucosal lesions therefore it is alsouseful in the work up of suspected duodenal varices. Here we present a patient with cryptogenic liver cirrhosis followed in our clinic, whom duodenal lesions suspected of duodenal varices were noticed during upper gastrointestinal endoscopic examination and endoscopic ultrasound was used to confirm the presence of duodenal varices.Correction Citation - WoS: 2Citation - Scopus: 1Dynamical Behavior of Rational Difference Equation /+ 1 +/-(vol 27, 49, 2021)(SPRINGER INT PUBL AG, 2021) Oğul, Burak; Şimşek, Dağıstan; Öğünmez, Hasan; Kurbanlı, Abdullah Selçuk[Abstract Not Available]
