44 results on '"Bozdağ, Ali"'
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2. Evaluation of the relationship between the physical properties and capillary water absorption values of building stones by regression analysis and artificial neural networks
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İnce, İsmail, Bozdağ, Ali, Barstuğan, Mücahid, and Fener, Mustafa
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- 2021
- Full Text
- View/download PDF
3. Leeb Hardness Approach in the Determination of Strength after Accelerated Weathering Tests.
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İnce, İsmail, Bozdağ, Ali, and Korkanç, Mustafa
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VOLCANIC ash, tuff, etc. , *ACCELERATED life testing , *BUILDING stones , *ROCK properties , *HARDNESS testing , *WEATHERING - Abstract
This study aimed to investigate the usability of the Leeb hardness test in determining changes in strength as a result of atmospheric weathering in works of cultural heritage built with low-strength pyroclastic rocks. To this end, the effects of weathering processes on strength properties were investigated in two building stones commonly used in Niğde province located in the Cappadocia (Turkey) region, which contains the most important works of cultural heritage created using low-strength pyroclastic rocks. The index, strength, mineralogical, and petrographic properties of rocks were first investigated. Then, freeze–thaw (F-T) and salt crystallization (SC) tests, the weathering processes of which consisted of six periods, were performed on samples prepared in cubic form. After the F-T and SC processes, the macro change in the samples and changes in weight loss, uniaxial compressive strength (UCS), and Leeb hardness (HL) values were determined. Highly correlated linear relationships were obtained between the SC and F-T cycles of the samples and the UCS and HL values. The HL test was applied to samples for which the UCS test could not be applied due to the loss of sample integrity after the advancing cycles of the accelerated weathering tests. Linear relationships with high correlation were determined between the UCS and HL values obtained from the samples after the accelerated weathering test. This study revealed that the HL approach could be used as an alternative in modeling the strength parameters of the weathering processes of the structures of cultural heritage built using low-strength rocks. [ABSTRACT FROM AUTHOR]
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- 2024
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- View/download PDF
4. An investigation on sample size in Leeb hardness test and prediction of some index properties of magmatic rocks
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İnce, İsmail and Bozdağ, Ali
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- 2021
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5. The relationship between weathering and welding degree of pyroclastic rocks in the Kilistra ancient city, Konya (Central Anatolia, Turkey)
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Bozdağ, Ali, Bayram, A. Ferat, İnce, İsmail, and Asan, Kürşad
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- 2016
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6. Estimation of uniaxial compressive strength of pyroclastic rocks (Cappadocia, Turkey) by gene expression programming
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İnce, İsmail, Bozdağ, Ali, Fener, Mustafa, and Kahraman, Sair
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- 2019
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- View/download PDF
7. Interpreting sulfated crusts on natural building stones using sulfur contour maps and infrared thermography
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Korkanç, Mustafa, Hüseyinca, Mehmet Yavuz, Hatır, Mehmet Ergün, Tosunlar, Mehmet Bahadır, Bozdağ, Ali, Özen, Latif, and İnce, İsmail
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- 2019
- Full Text
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8. Determination of deterioration of the main facade of the Ferit Paşa Cistern by non-destructive techniques (Konya, Turkey)
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İnce, İsmail, Bozdağ, Ali, Tosunlar, M. Bahadır, Hatır, M. Ergün, and Korkanç, Mustafa
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- 2018
- Full Text
- View/download PDF
9. ESTIMATION OF BOHME ABRASION RESISTANCE THROUGH THE PHYSICO-MECHANICAL PROPERTIES OF NATURAL BUILDING STONES
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BOZDAĞ, Ali
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Böhme aşınma direnci,Doğal yapı taşı,Fiziko-mekanik özellikler,Basit regresyon,Çoklu regresyon ,Yerbilimleri, Ortak Disiplinler ,Geosciences, Multidisciplinary ,Böhme Abrasion Resistance,Natural Building Stone,Physico-Mechanical Properties,Simple Regression,Multiple Regression - Abstract
Dünya nüfusunun artmasına bağlı olarak yapı sektöründe doğal yapı taşlarına olan talep her geçen gün artmakta olup doğal taşların kullanım alanlarının doğru tespit edilebilmesi için fiziko-mekanik özelliklerin belirlenmesi gerekmektedir. Ayrıca fiziko-mekanik özelliklerinin belirlenmesi doğal taşların kullanım alanlarındaki davranışlarının da anlaşılması açısından önem arz etmektedir. Doğal taşların kullanım alanlarına göre belirlenmesi gereken mekanik özelliklerden birini oluşturan aşınma direncinin tespiti için yaygın olarak kullanılan yöntem Böhme aşınma testidir. Bu çalışma da farklı kökenli kayaçların (magmatik, metamorfik, sedimanter) fiziko-mekanik özelliklerinin belirlenmesiyle aşınmaya karşı dayanım dirençlerinin tahmini istatistiksel yöntemlerle incelendi. Bu amaçla Anadolu’nun farklı bölgelerinden farklı kökenli doğal taş örnekleri toplanmış ve bu örneklerde Böhme aşınma deneyi ve fiziko-mekanik deneyler yapılmıştır. Doğal taşların Böhme aşınma direnci ile kuru yoğunluk, porozite, ağırlıkça su emme, P dalga hızı, Schmidt çekiç değeri, tek eksenli basma değerleri arasındaki ilişkiler basit regresyon ve çoklu regresyon analizleriyle incelenmiştir. Çoklu regresyon analiziyle geliştirilen denklem yardımıyla belirlenen Böhme aşınma direnç değerleri ile deneysel yöntemlerle belirlenen Böhme aşınma direnç değerleri arasında R2=0,92 olarak belirlenmiştir. Yapılan bu çalışma ile farklı doğal taşların aşınma direncinin tahmininde Böhme aşınma testinden farklı olarak diğer fiziko-mekanik özelliklerden elde edilebilecek denklemler geliştirilmiştir., Due to the increase in the world population, the demand for natural building stones in the building sector is increasing day by day, and it is necessary to determine the physico-mechanical properties of natural stones in order to accurately determine the usage areas. In addition, determining the physico-mechanical properties is important in terms of understanding the behavior of natural stones in their usage areas. The commonly used method for determining the abrasion resistance, which constitutes one of the mechanical properties that should be determined according to usage areas, is the Böhme abrasion resistance test. In this study, by determining the physico-mechanical properties of rocks having the different origin (igneous, metamorphic, sedimentary), the strength resistance to the abrasion resistance of the rocks was investigated by statistical methods. For this purpose, natural stone samples with different origin were collected from different regions of Anatolia, and physico-mechanical experiments and the Böhme abrasion resistance tests were carried out. Relationships between Böhme abrasion resistance and dry density, porosity, water absorption by weight, P-wave velocity, Schmidt hammer value, uniaxial compressive strength values of natural stones were investigated with simple regression and multiple regression analysis. A high positive correlation (R2=0.92) was determined between the Böhme abrasion resistance values determined by the equation obtained from multiple regression analysis and the Böhme abrasion resistance values determined by experimental methods. With this study, equations that can be obtained from other physico-mechanical properties, different from the Böhme abrasion resistance test, were developed for the estimation of the abrasion resistance of different natural stones.
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- 2020
10. The impact of COVID-19 pandemic on psoriasis patients, and their immunosuppressive treatment: a cross-sectional multicenter study from Turkey
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Kartal, Selda Pelin, primary, Çelik, Gökçen, additional, Yılmaz, Oğuz, additional, Öksüm Solak, Eda, additional, Demirbağ Gül, Büşra, additional, Üstünbaş, Tuba Kevser, additional, Gönülal, Melis, additional, Baysak, Sevim, additional, Yüksel, Esma İnan, additional, Ünlü, Begüm, additional, Güven, Münevver, additional, Bozdağ, Ali, additional, Çınar, Gökhan, additional, Kartal, Selim, additional, Borlu, Murat, additional, Özden, Müge Güler, additional, Engin, Burhan, additional, Serdaroğlu, Server, additional, Balcı, Didem Didar, additional, Doğan, Bilal, additional, Çiçek, Demet, additional, Yazıcı, Ayça Cordan, additional, Aytekin, Sema, additional, Şendur, Neslihan, additional, Sarıcaoglu, Hayriye, additional, Kaçar, Nida Gelincik, additional, Doğramacı, Asena Cigdem, additional, Dönmez, Levent, additional, and Alpsoy, Erkan, additional
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- 2021
- Full Text
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11. The impact of COVID-19 pandemic on psoriasis patients, and their immunosuppressive treatment: a cross-sectional multicenter study from Turkey.
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Kartal, Selda Pelin, Çelik, Gökçen, Yılmaz, Oğuz, Öksüm Solak, Eda, Demirbağ Gül, Büşra, Üstünbaş, Tuba Kevser, Gönülal, Melis, Baysak, Sevim, Yüksel, Esma İnan, Ünlü, Begüm, Güven, Münevver, Bozdağ, Ali, Çınar, Gökhan, Kartal, Selim, Borlu, Murat, Özden, Müge Güler, Engin, Burhan, Serdaroğlu, Server, Balcı, Didem Didar, and Doğan, Bilal
- Subjects
COVID-19 pandemic ,PATIENT compliance ,PSORIASIS ,COVID-19 ,IMMUNOSUPPRESSIVE agents - Abstract
Immunosuppressive therapy has been a great concern during the pandemic. This study aimed to evaluate the pandemic's impact on psoriasis patients treated with immunosuppressive drugs. The multicenter study was conducted in 14 tertiary dermatology centers. Demographic data, treatment status, disease course, and cases of COVID-19 were evaluated in patients with psoriasis using the immunosuppressive treatment. Of 1827 patients included, the drug adherence rate was 68.2%. Those receiving anti-interleukin (anti-IL) drugs were more likely to continue treatment than patients receiving conventional drugs (OR = 1.50, 95% CI, 1.181–1.895, p =.001). Disease worsening rate was 24.2% and drug dose reduction increased this rate 3.26 and drug withdrawal 8.71 times. Receiving anti-TNF or anti-IL drugs was associated with less disease worsening compared to conventional drugs (p =.038, p =.032; respectively). Drug withdrawal causes were 'unable to come' (39.6%), 'COVID concern' (25.3%), and 'physician's and patient's co-decision' (17.4%). Four patients had COVID-19 infection with mild symptoms. The incidence was 0.0022% while it was 0.0025% in the general population. Our study shows that psoriasis patients using systemic immunosuppressive do not have a higher, but even lower COVID-19 risk than the general population, and treatment compliance with biological drugs is higher. [ABSTRACT FROM AUTHOR]
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- 2022
- Full Text
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12. DOĞAL YAPI TAŞLARININ FİZİKO MEKANİK ÖZELLİKLERİYLE BÖHME AŞINMA DİRENCİNİN TAHMİNİ
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BOZDAĞ, Ali, primary
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- 2020
- Full Text
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13. An assessment of deterioration in cultural heritage: the unique case of Eflatunpınar Hittite Water Monument in Konya, Turkey
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Bozdağ, Ali, primary, İnce, İsmail, additional, Bozdağ, Ayla, additional, Hatır, M. Ergün, additional, Tosunlar, M. Bahadır, additional, and Korkanç, Mustafa, additional
- Published
- 2019
- Full Text
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14. Comparison of suture receiver tool and classical suture receivers
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bilgiç, ethem, primary, bozdağ, ali, additional, boylu, şükrü, additional, soyder, aykut, additional, boylu, tülin, additional, yılmaz, eyüp, additional, and manoğlu, berke, additional
- Published
- 2019
- Full Text
- View/download PDF
15. An assessment of deterioration in cultural heritage: the unique case of Eflatunpınar Hittite Water Monument in Konya, Turkey.
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Bozdağ, Ali, İnce, İsmail, Bozdağ, Ayla, Hatır, M. Ergün, Tosunlar, M. Bahadır, and Korkanç, Mustafa
- Subjects
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CULTURAL property , *BUILDING stones , *MONUMENTS , *NONDESTRUCTIVE testing , *QUARRIES & quarrying , *PRESERVATION of monuments - Abstract
Stone monuments are important symbols of cultural heritage of countries. However, many environmental factors negatively affect these monuments. The increasing damage on the stone monuments and the danger of irreversible loss of cultural heritage have resulted in growing efforts for the preservation of the monuments. Eflatunpınar Hittite Water Monument in Beyşehir, Konya, Turkey, is a unique Hittite cultural monument that has survived for nearly 3200 years even though it has been exposed to many environmental effects. In this study, non-destructive testing (NDT) was used to detect the degradation on the building stones of the Eflatunpınar Hittite Water Monument and change-deterioration maps were prepared subsequently. It was also investigated whether the chemistry of the Eflatunpınar spring water may cause deterioration. Additionally, the petrographic, chemical, and physico-mechanical properties of the rocks taken from the ancient stone quarry were determined in order to compare with the properties of the monument's building stones. Based on the physico-chemical characteristics of the Eflatunpınar spring water and XRD results of crusts in building stone surface of the monument, it was identified that water can be effective on the formation of calcite and gypsum crusts especially in the lower parts of the monument. However, applied NDT methods and change-deterioration maps indicated that the deterioration as well as neglect and abandonment in the monument are mostly associated with the capillary effect of the flowing water through the structure and the deterioration effect is more apparent in contact points between the building stone and the flowing water. Additionally, in the building stones above the capillary front, the conservation condition is significantly better. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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16. The Determination of Deteriorations on the Mısırlıoğlu Bridge (Konya, Turkey) by Non-Destructive Techniques (NDT)
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Tosunlar, Mehmet Bahadır, primary, Hatır, Mehmet Ergün, additional, İnce, İsmail, additional, Bozdağ, Ali, additional, and Korkanç, Mustafa, additional
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- 2018
- Full Text
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17. Interactive Poster
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Erpek, Hakan, primary, Bozdağ, Ali Doğan, additional, Boylu, Şükrü, additional, and Soyder, Aykut, additional
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- 2018
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18. Predicting Strength Parameters of Igneous Rocks from Slake Durability Index
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Bozdağ, Ali, primary and İnce, İsmail, additional
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- 2018
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19. The Determination of Deteriorations on the Mısırlıoğlu Bridge (Konya, Turkey) by Non-Destructive Techniques (NDT)
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Tosunlar, Mehmet Bahadır, Hatır, Mehmet Ergün, İnce, İsmail, Bozdağ, Ali, Korkanç, Mustafa, Tosunlar, Mehmet Bahadır, Hatır, Mehmet Ergün, İnce, İsmail, Bozdağ, Ali, and Korkanç, Mustafa
- Abstract
Transportation has been one of the basic requirements of humanity since the earliest periods of civilization. One of the architectural structures designed to meet this requirement is historic stone bridges. One of the most important stages in these conservation works is the assessment of materials that constitute the structures. Non-destructive testing techniques (NDT) are widely used to obtain qualitative data and also make comparisons. In this study, it was aimed to determine deteriorations on the Mısırlıoğlu Bridge located in Sille settlement of Konya by NDT technique and to form the map from obtained values to perform conservation works. As a result of the analyses performed, considerable deteriorations in the building stones used in the abutments and arches of the structure were determined. Besides, it is detected that uniaxial compressive strength (UCS) value of the fresh samples is high (UCS: 61 MPa) while UCS values of the building stones used at the bridge decrease in the range of low and high (8-51 MPa) due to the atmospheric effects.
- Published
- 2018
20. Laparoskopik Apendektomi ve Açık Apendektominin Yağam Kalitesi Üzerine Etkisi
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Yılmaz, Eyüp Murat, Manoğlu, Berke, Aksu, Murat, Soyder, Aykut, and Bozdağ, Ali Doğan
- Abstract
Amaç: Hoo Pdu dulkohul dudvgd dflo vhuylvh edyud yh suhrshudli nolln yh udgrormln rodudn dn dsdglvl dv nrd kdvdodugd jodd fhuudkl survhgu ddp ndolhvl hulh hnlvll dudupdn Yöntem: E dopd Hoo Pdu dulkohul dudvgd dflo vhuylvh edyud yh suhrshudli nolln yh udgrormln rodudn dn dsdglvl dv nrd kdvdd odsdurvnrsln d gd dn dshghnrpl dsognd vrud srvrshudli j yh dodugd V dnhohul joddudn dsopu Bulgular: dopdd kdvd ndog ndg vl :: hunhn ros lh dn vlh odsdurvnrsln survhgu jodg Srvrshudli ddomhln lkldodud ednoggd khu jus dudvgd yh vddohu dudvgd dodpo idun vdsdpdnh srvrshudli vddh jue ddomhln lkldf jlghuhn ddog johgl V dnhohull ghhuohglulophvlgh srvrshudli johuh ednoggd uk vdo illnvho irnvlr illnvho uro yh vrvdo irnvlr dvgd jusodu dudvgd lvdlvlnvho idunoon vdsdpdnhdujhho vdon dojvfdoon hprvrho uro illnvho elohh h yh phdo elohh hohul dvgd odsdurvnrsln dshghnrpll dn dshghnrplh juh lvdlvlnvho rodudn dodpo rog juog d dnhohulgh lvh vrvdo irnvlr dvgd lvdlvlnvho rodudn dodpv eounhillnvho irnvlr illnvho uro du jhho vdon dojv fdoon hprvrho uro uk vdo illnvho elohh h yh phdo elohh hohul dvgd odsdurvnrsln dshghnrpl sdodu dn dshghnrplh juh lvdlvlnvho rodudn dodpo eog ddd lvl Sonuç: ddp ndolhvl hulh hunh yh jh ghpgh ropo hnlvl rod odsdurvnrsln survhgu dn hph juh gdkd ll vi vrodu hogh hpllu Anahtar Kelimeler: odsdurvnrsln dshghnrpl dn dshghnrpl ddp ndolhvl
- Published
- 2016
21. Nadir Bir Olgu Sunumu: Güdük Apandisit
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YILMAZ, Eyüp, SOYDER, Aykut, KARACAN, Erkan, and BOZDAĞ, Ali
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Nadir,Güdük,Apandisit - Abstract
Güdük apandisit, nadir bir komplikasyon olup apandektomi sonrası 1/50.000 oranında görülmektedir.Apendektomi öyküsü olan hastalarda güdük apandisit tanısı gözden kaçabilmektedir.Klinik olarak akut apandisite çok benzemektedir.Biz de bu makalemizde nadir görülen, acil serviste güdük apandisit tanısı konmuş bir vakayı sunacağız. ( Sakarya Tıp Dergisi 2016, 6(1):34-37 ) Anahtar Kelimeler: Nadir; Güdük; Apandisit
- Published
- 2016
22. Effect of salt crystallization on weathering of pyroclastic rocks from Cappadocia, Turkey
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Özşen, Hakan, primary, Bozdağ, Ali, additional, and İnce, İsmail, additional
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- 2017
- Full Text
- View/download PDF
23. Nadir bir akut karın nedeni: Spontan koledok perforasyonu
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SÖZÜTEK, Alper, KARABUĞA, Türker, DERİCİ, Hayrullah, and BOZDAĞ, Ali Doğan
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Ortak safra kanalı,batın,akut,cerrahi ,Common bile duct,abdomen,acute,surgery - Abstract
Spontaneous choledochus perforation in adults leading to biliary peritonitis is an uncommon entity. Cholelithiasis, choledocholithiasis, choledochal cysts, and tumor obstruction of the ampulla have been reported as possible etiologies of the perforation. The spontaneous perforation of the choledochus without etiologic factors, which leads to acute abdomen, is a very rare condition, with only a few cases reported in the literature. A 78year-old male patient underwent urgent laparotomy because of acute abdomen, and a spontaneous perforation on the posterior side of the distal choledochus was determined. Cholecystectomy and T-tube drainage through the perforation hole was performed. T-tube was removed on the postoperative 14th day. After two days, the patient suffered from acute abdominal pain and bile leakage was observed from the incision line. The second-look laparotomy determined duodenal ulcer perforation, and primary repair was performed. The choledochus was intact. The patient was followed in the intensive care unit after the second operation and died from multiple organ failure in the first postoperative month., Spontan koledok perforasyonu erişkinlerde de nadirde olsa rastlanan ve biliyer peritonite neden olabilen bir durumdur. Kolelitiasis, koledokolitiasis, koledok kistleri ve ampullanın tümörle obstruksiyonu suçlanan etiyolojik faktörler arasındadır. Etiyolojik faktörler olmaksızın erişkinlerde spontan koledok perforasyonu gelişmesi oldukça nadir olup, literatürde sadece birkaç vaka ile sınırlıdır. Yetmiş sekiz yaşında erkek hasta akut karın tablosu nedeniyle ameliyat edildi, distal koledok posterior bölümünde perforasyon alanı olduğu görüldü. Kolesistektomi ve perforasyon alanından T-tüp drenaj uygulandı. Ameliyat sonrası 14. günde T-tüp dreni çekildi. İki gün sonra hastada ani başlayan karın ağrısı ve insizyonundan safralı içerik geldiği gözlendi. İkincil laparotomi uygulanan hastada duodenal ülser perforasyonu saptandı ve primer tamir uygulandı. Tamir edilen koledok perforasyon alanı tamamen iyileşmişti. İkinci ameliyattan sonra yoğun bakım ünitesinde takip edilen hasta postoperatif birinci ayında çoklu organ yetmezliği nedeniyle kaybedildi.
- Published
- 2015
24. Tuz (NaCl) kristallenmesinin kayaçların mühendislik parametreleri üzerine etkisi
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Bozdağ, Ali, Günaydın, Osman, Jeoloji Anabilim Dalı, and Enstitüler, Fen Bilimleri Enstitüsü, Jeoloji Mühendisliği Ana Bilim Dalı
- Subjects
Textural properties ,Tuz kristallenmesi ,Salt crystallization ,Bozunma ,Yapı taşı ,Jeoloji Mühendisliği ,Weathering ,Geological Engineering ,Dokusal özellikler ,Fiziko-mekanik özellikler ,Building stones ,Physico-mechanical properties - Abstract
Bu çalışma, Konya, Aksaray, Niğde, Nevşehir, Kayseri, Kırşehir, Muğla, Mersin ve Karaman illerinden alınan ve yapı taşı olarak kullanılan farklı porozite ve dokusal özelliklere sahip 10 farklı kayacın ısı etkisi ile tuz kristallenmesine karşı göstermiş oldukları dayanımları değerlendirmek için yapılmıştır. Çalışmada kullanılan 10 farklı kayacın, tuz (NaCl) kristallenmesi sonucu fiziko-mekanik özelliklerinde meydana gelen değişimler; porozite, kuru birim ağırlık, ağırlıkça su emme, sonik hız, tek eksenli sıkışma dayanımı, nokta yük dayanım indeksi, Brazilian (dolaylı) çekilme dayanımı, agrega darbe dayanım değeri, suda aşınmaya karşı duraylılık testi değerleri, Böhme aşınma kaybı ve Los Angeles aşınma kaybı değerleri ile belirlenmiştir. Ayrıca, tuz kristallenmesi deneyi sonrasında kayaçların fiziksel ve mühendislik özelliklerindeki değişimler, bozunma sabiti ve yarılanma ömrü kavramları ile sayısal olarak ifade edilmiştir. Tuz kristallenmesi periyot sayısının ilerlemesi ile kayaçların porozite, ağırlıkça su emme ve kuru ağırlık kaybı değerlerinde artış, P dalgası yayılma hızında ise azalma gözlenmiştir. Tuz kristallenmesi deneyi sonucu kayaçların indeks özelliklerinde en fazla değişim mermer, spilit ve tüf örneklerinde en az değişim ise granit ve bazalt örneklerinde meydana gelmiştir. Kayaçların tuz kristallenmesi deneyi sonucunda elde edilen dayanım parametrelerine göre granit ve bazaltın en fazla dayanıma sahip, mermerin ise en az dayanıma sahip olduğu belirlenmiştir. Aşınma parametrelerine göre en fazla aşınma mermer, spilit ve tüf örneklerinde en az aşınma ise granit ve bazalt örneklerinde meydana gelmiştir. Tuz kristallenmesi sonucu kayaçlarda meydana gelen bozunmalar makroskobik ve mikroskobik ölçekte incelenmiş ve elde edilen verilere göre mikro çatlaklar, süreksizlikler, minerallerin çeşidi ve boyutu, porozite ve minerallerde var olan alterasyonlar tuz kristalizasyon deneyi sonucunda kayaçların bozunmasına etki eden faktörler olduğu belirlenmiştir., This study assesses the resistances of 10 different rocks, which have different porosity and textural properties and were taken from Konya, Aksaray, Niğde, Nevşehir, Kayseri, Kırşehir, Muğla, Mersin, and Karaman provinces and also are widely being used as building stones, against salt crystallization with thermal effect The changes in physico-mechanical properties of the 10 different rocks with the effect of salt crystallization have been determined by porosity, dry unit weight, water absorption in weight, sonic velocity, uniaxial compressive strength, point load strength index, Brazilian (indirect) tensile strength, aggregate impact value, Slake durability test values, Bohme and Los Angeles abrasion values. In addition, the changes in physical and engineering properties of rocks due to salt crystallization were expressed numerically with decay constant and half-life concepts. Porosity, water absorption in weight, dry unit weight loss values of rocks increased with an increase salt crystallization cycles, but P-wave velocity values decreased with an increase salt crystallization cycles. The maximum change in index properties of rocks with the effect of salt crystallization has been observed in samples of marble, spilite, and tuff; the minimum change has been observed in samples of granite and basalt. According to the mechanical parameters of rocks obtained from salt crystallization test, granite and basalt have maximum strength; marble has the least strength. According to the abrasion parameters of rocks, the maximum abrasion has occurred in samples of marble, spilite, and tuff; the minimum abrasion has occurred in samples of granite and basalt. Weathering occurring in rocks with the effect of salt crystallization was examined the macroscopic and microscopic scale. According to these data, it was determined that micro cracks, discontinuities, type and size of minerals, porosity, alterations existing minerals are factors affecting the weathering of rocks as a result of salt crystallization
- Published
- 2013
25. The evaluation of lipid parameters chronic kidney failure patients
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Bozdağ, Ali, Yöntem, Mustafa, and Biyoloji Ana Bilim Dalı
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Lipoproteins ,Cholesterol-HDL ,Biochemistry ,Lipids ,Cholesterol-LDL ,Cholesterol ,Biyokimya ,lipids (amino acids, peptides, and proteins) ,Kidney failure-chronic ,Biology ,Dialysis ,Biyoloji ,Renal dialysis ,Cholesterol-VLDL - Abstract
Kronik böbrek yetmezliği, böbreklerin nefron kütlesinin ilerleyici ve geri dönüşü olmayan dejenerasyonu ile karakterizedir. Son dönem böbrek yetmezliği varılan en son nokta olarak kabul edilir. Bu noktadan itibaren hastanın artık hayatını devam ettirebilmesi için renal replasman tedavilerinden hemodiyaliz, periton diyalizi veya transplantasyondan birinin kullanılması zorunlu hale gelmiştir. Hemodiyaliz halen dünyada son dönem böbrek yetmezliği tedavisinde kullanılan en yaygın yöntemdir. Yapılan çalışmalarda etkin bir hemodiyalizin morbidite ve mortaliteyi azalttığı gözlenmiştir. Bu çalışmada kronik böbrek yetersizliği ile hemodiyaliz tedavisi gören hastalarda lipid parametrelerinin etkileri araştırıldı. Çalışma grubumuzu, 12'si erkek toplam 23 diyaliz hastasının kan örnekleri ile yine 12'si erkek toplam 26 sağlıklı grup oluşturdu. Biz bu çalışmamızda üre, kreatinin, trigliserit, kolesterol, HDL kolesterol, LDL kolesterol ve VLDL kolesterol analizlerini tayin ederek kontrol grubumuz ile istatistiki açıdan değerlendirmesini yaptık. Sonuç olarak kolesterol değerlerimiz kontrol grubumuza göre biraz yüksek çıkmakla birlikte istatistiki açıdan bir önemlilik tespit edilemedi. Diğer parametrelerimiz arasında sırasıyla üre, kreatinin, HDL kolesterol değerlerinde (p < 0,0001), LDL kolesterol (p < 0,4552), trigliserit ve VLDL kolesterol (p < 0,020) değerleri arasında istatistiki açıdan önemlilik tespit edilmiştir. Yine yapmış olduğumuz üre-kolesterol ve üre-LDL kolesterol arasında da pozitif bir korelasyon tespit edildi. Chronic renal failure is characterized by the progressive and irreversible degeneration of the renal mass. Late phase renal failure is considered as the eventual point. From this point on, the patient can no longer continue life without the help of hemodialysis, peritoneal dialysis, or transplantation. Hemodialysis is still the most common method that is used in the treatment of last phase renal failure. The studies show that an effective hemodialysis decreases both morbidity and mortality. In this study it is investigated the patients they get hemodialysis treatment because of chronic kidney failure is investigated. We worked 23 (12 male) dialysis patient as patient group and 26 (12 male) healthy group. In this study we compared the two groups by the level of urea, creatinin, trigliseride, cholesterol, HDL, LDL and VLDL. As aresult in patients group cholesterol levels are higher than healthy group but this not very important. As we come to other parameters in urea, creatinin and HDL levels are (p < 0.0001), LDL (p
- Published
- 2012
26. The Effect of Laparoscopic Appendectomy and Open Appendectomy on the Quality of Life
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Yılmaz, Eyüp Murat, primary, Manoğlu, Berke, additional, Aksu, Murat, additional, Soyder, Aykut, additional, and Bozdağ, Ali Doğan, additional
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- 2016
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27. A Rare Case Report: Stump Appendicitis
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Yılmaz, Eyüp Murat, primary, Soyder, Aykut, additional, Karacan, Erkan, additional, and Bozdağ, Ali Doğan, additional
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- 2016
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28. Clinical evaluation and treatment results of patients with nontraumatic colon perforation
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Yaman, İsmail, Kara, Cemal, Karabuğa, Türker, Sözütek, Alper, Tansuğ, Tuğrul, Bozdağ, Ali Doğan, Nazlı, Okay, and Tıp Fakültesi
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Kolon Perforasyonu ,Colonic Perforation ,Colon Surgery ,Etiyolojik Faktörler ,Etiological Factor ,Kolon Cerrahisi - Abstract
Yaman, İsmail ( Balikesir Author ), AMAÇ: Nontravmatik kolon perforasyonları (NTKP) akut karın sendromu nedenleri arasında ender rastlanan, morbiditesi ve mortalitesi yüksek seyredebilen bir klinik tablodur. Bu çalışmada kliniğimizde NTKP nedeniyle cerrahi tedavi uygulanan olguları sunmak amaçlandı. YÖNTEMLER: Ocak 2000 - Ocak 2009 tarihleri arasında kliniğimizde ameliyat edilen NTKP’lu olguların dosyaları geriye dönük olarak incelenmiştir. Dosya verilerinden hastaların demografik özellikleri, semptomların başlangıcı ile hastaneye başvuru arasındaki süre, yandaş hastalıkları, radyolojik ve laboratuvar bulguları, perforasyon yeri ve etiyolojisi, peritonitin yaygınlık derecesi, intraabdominal sıvının karakteri, uygulanan cerrahi girişim, ameliyat sonrası gelişen morbidite ve mortalite araştırılmıştır. Hastaların mortalite ve morbidite riskinin ve peritonit şiddetinin belirlenmesinde Amerikan Anesteziyoloji Derneği (ASA) skorlaması ve Mannheim peritonit indeksi (MPI) kullanılmıştır. BULGULAR: Olguların 13’ü (%68.4) erkek, altısı (%31.6) kadın olup, yaş ortalaması 59,9 (23-83) idi. Perforasyonun en sık nedeni malignite (n=8) idi. ADBG çekilen olguların 10’unda (%58,8) pnömoperitoneum saptanırken, USG tetkiki uygulanan olguların dokuzunda (%52,9) karın içi serbest sıvı saptandı. Perforasyonların en sık görüldüğü lokalizasyon 12 olguda (%63,2) olmak üzere sigmoid kolondu. Olguların dokuzunda (%47,4) morbidite, üçünde (%15,8) mortalite gelişti. Morbidite oranı ASA skoru?2 olgularda %33,3 iken ASA skoru>2 olgularda %60; MPI2, ikisinde MPI ?21 idi. SONUÇ: NTKP heterojen bir gruptur. Uygulanacak tedavi seçiminde ve prognozda hastanın genel durumu, karın bulguları, perforasyonun büyüklüğü ve lokalizasyonu kadar etiyolojide rol oynayan faktörler de önemli bir yer tutar. İyileşen postoperatif yoğun bakım şartlarına rağmen ASA skoru>2 olan veya MPI>21 olan jeneralize peritonitli olgularda morbidite ve mortalite oranları halen yüksektir., OBJECTIVE: Non-traumatic colonic perforation (NTCP) is a rare clinical entity among the causes of acute abdominal syndrome with high morbidity and mortality. In this study, the patients that were operated with NTCP in our department were evaluated. METHODS: Patients with NTCP that were operated between January 2000 and January 2009 in our department were evaluated retrospectively. The patient demographics, the time between the onset of the symptoms and the hospital admission, additional diseases, the radiological and the laboratory findings, the localization of the perforation and the etiological factors, the level of generalization of peritonitis, the characteristics of the intraabdominal fluid, the surgical method that was performed, and the postoperative morbidity and mortality rates were obtained from the medical records. Mannheim peritonitis index (MPI) and American Society of Anesthesiology (ASA) scoring index is used to assess the severity of peritonitis and the risk of morbidity and mortality. RESULTS: There were 13 (68.4%) male and 6 (31.6%) female patients with a mean age of 59.9 years (ranging 23-83 years). Malignancy was the most common cause of perforation (n=8). Ten patients (58.8%) had pneumoperitonium on their abdominal X-ray while nine patients (52.9%) had free abdominal fluid that was picked up with ultrasonographical examination. The most common perforation site was the sigmoid colon (n=12). There were nine (47.7%) morbidities and three (15.8%) mortalities. Morbidity rate was 33.3% in the patients with an ASA score 2, while the morbidity rate was 30% in the patients with a MPI21. All the three patients had an ASA score >2, and two of them had a MPI>21. CONCLUSION: NTCP is an heterogeneous group with high morbidity and mortality. The optimal treatment method and the prognosis is related with the general condition of the patient, abdominal findings, the size and the localization of the perforation, and the etiological factors. Despite the developing conditions in postoperative intensive care, the morbidity and mortality rates are still high with the patients having generalized peritonitis, ASA score>2 and MPI>21.
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- 2010
29. Structual Features of The Sultandağları Massif Between Doğanhisar and Hüyük (Konya, Turkey)
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AKSOY, Rahmi and BOZDAĞ, Ali
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SultandağlarÍ Masifi,mesoskopik tektonik,çok evreli kıvrımlanma,blok faylanma ,SultandağlarÍ Massif,mesoscopic tectonic,superimposed folding,block faulting - Abstract
Sultandağları Masifi’nin güneydoğu kesiminde Doğanhisar ile Hüyük arasında Miyosen-Pliyosen yaşlı örtü altında masifin Paleozoyik yaşlı metamorfitleri yer alır. Bu çalışmada masifin metamorfizmasına eşlik eden deformasyon evreleri belirlenmiştir. Alpin hareketlerle yeşilşist fasiyesinde metamorfizma geçiren kayaçların üç sünümlü kıvrımlanma evresi geçirerek kıvrım–2 ve kıvrım–3 tipi üstelenmiş kıvrım geometrisi kazandıkları anlaşılmaktadır. Bu deformasyon evrelerinde, sırasıyla, (1) yapraklanma düzlemleri; (2) KB-GD gidişli yatay eksenli, az-eğik, izoklinal kıvrımlar ve buruşma lineasyonları; (3) KD-GB gidişli eksen düzlemi eğik, ekseni dalımlı izoklinal ve benzer kıvrımlar gelişmiştir. İnceleme alanının Miyosen’den itibaren blok faylanmayla kırıklanarak bugünkü iç yapısını kazandığı saptanmıştır., Paleozoic metamorphites crop out under the Miocene-Pliocene cover rocks in thesoutheastern part of the SultandaÂlarÍ Massif between DoÂanhisar and Hüyük. In this study, phasesof deformation accompanied the metamorphism of the massif were determined.The rock units of the massif experienced regional metamorphism under the greenschist facieshave undergone three phases of deformation during the Alpine orogeny. These are, in sequence, (1)schistosity planes, (2) NW-SE trending sub-horizontal, gently inclined isoclinal folds and crenulationlineations and (3) NE-SW trending moderately inclined and plunging, isocinal and similar folds. Thesecond and third phases caused to develop type-2 and type-3 superimposed folding.The study area has gained its present internal structure by uplifting, subsidence and blockfaulting, denoted as the F4-phase, since Miocene.
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- 2008
30. Contribution of an educational video to surgical education in laparoscopic appendectomy.
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Yılmaz, Eyüp Murat, Soyder, Aykut, Aksu, Murat, Bozdağ, Ali Doğan, Boylu, Şükrü, Edizsoy, Akay, Ballı, Şadi, and Tekindal, Mustafa Agah
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MEDICAL education ,PROFESSIONAL education ,OPERATING rooms ,LAPAROSCOPY ,MEDICAL students - Abstract
Objective: With recent widespread advances in laparoscopy, providing education on this subject has become a significant challenge. The aim of this study was to determine the degree of contribution made by surgeons to laparoscopic education through an educational video. Material and Methods: A total of 40 volunteer general surgery residents and specialists participated in our study. Before watching the approximately six-minute educational video prepared for laparoscopic appendectomy, the participants were asked to fill out participant information forms and information measurement questionnaire forms. After the video, the participants were asked to fill out the information measurement questionnaire forms a second time; additionally, attitude evaluation forms and education evaluation questionnaire forms were presented to the participants for completion, and statistical analysis was performed. Furthermore, the total watching duration andthe number of times the video was paused were recorded. Results: A total of 40 surgeons participated in the study (75% residents and 25% specialists). When the results of the information determination questionnaire forms filled out by the resident and specialist groups before and after the video were compared, it was observed that the scores of both groups significantly increased after watching the video (p=0.001). A statistical significance was identified between the length of time the video was watched and the education evaluation form scores of the participants (p<0.01). It was observed that the longer the video was watched, the greater the increase in the education evaluation scores. The results of the attitude evaluation forms implied that the video could be produced more professionally. Conclusion: Although education is an inevitable requirement of laparoscopic surgery, many teaching methods are available. Awareness-enhancing videos prepared on this topic can be efficient in providing laparoscopic education. [ABSTRACT FROM AUTHOR]
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- 2017
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31. Doğanhisar-Hüyük (Konya) arasının jeolojisi
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Bozdağ, Ali, Aksoy, Rahmi, and Jeoloji Mühendisliği Anabilim Dalı
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Jeoloji Mühendisliği ,Geological Engineering - Abstract
3ÖZYüksek Lisans TeziDOĞANHİSAR-HÜYÜK (KONYA) ARASININ JEOLOJİSİAli BOZDAĞSelçuk ÜniversitesiFen Bilimleri EnstitüsüJeoloji Mühendisliği Ana Bilim DalıDanışman: Yrd.Doç. Dr. Rahmi AKSOY2005, 71 sayfaDoğanhisar-Hüyük arasında Miyosen-Pliyosen yaşlı örtü altında düşük derecelimetamorfizma ve deformasyon geçirmiş metamorfitler izlenir. Bunlar literatürdeSultandağları Masifi olarak bilinir. Masife ilişkin temel kayaçların yapısal ve jeolojikgelişimleri bu çalışmaların amacını oluşturmaktadır.Metamorfitlerin tabanını resifal nitelikli, kristalize kireçtaşı ve dolomitlerdenoluşan Alt(?)-Orta Kambriyen-Alt Ordovisiyen yaşlı Çaltepe formasyonu teşkil eder.Çaltepe formasyonu üzerine uyumlu olarak kristalize kireçtaşı ve metakonglomeraaratabakalı, fillit ve metakumtaşları ile temsil olunan Üst Kambriyen-AltOrdovisiyen yaşlı Sultandede formasyonu gelir. Bu istifi fillit arakatkılı metakuvarsit ve metakuvars konglomeralarından yapılı, Orta-Üst Devoniyen yaşlı Engilli4formasyonu açılı bir uyumsuzlukla örter. Bunun üzerine uyumlu olarak kökendeçamurtaşı arakatkılı karbonatlarla temsil edilen Alt-Orta Karbonifer yaşlı KirazlıFormasyonu yer alır. Kirazlı Formasyonunu yanal ve düşey geçişli olarak aynı yaşlıHarlak Formasyonu örter. Metamorfik istif, onları uyumlu olarak izleyen OrtaKarbonifer-Üst Permiyen yaşlı Deresinek Formasyonu ile son bulur.Temele ilişkin kayaçlar tümüyle Alpin orojenine bağlı olarak yeşilşistfasiyesinde bölgesel başkalaşım geçirmiş ve aynı zamanda üç evreli deformasyonetkisinde, (F2) KB-GD ve (F3) KD-GB gidişli kıvrımlar geliştirmişlerdir.Yörenin jeoloji evrimi neotektonik dönemde gelişen faylar ve onlarınhareketlerine bağlı olarak gelişen Miyosen-Pliyosen yaşlı oluşukların çökelimiyleson bulmuştur.Anahtar kelimeler: Sultandağı, Doğanhisar, Hüyük, metamorfizma, çok evrelideformasyon. 5ABSTRACTMaster?s ThesisGEOLOGY OF THE AREA BETWEEN DOĞANHİSAR AND HÜYÜK (KONYA)Ali BOZDAĞUniversity of SelcukGraduate School of Natural and Applied ScienceDepartment of Geological EngineeringSupervisor: Assistant Prof. Dr. Rahmi AKSOY2005, 71 pageMetamorphosed and deformed rocks crop out under the Miocene-Plioceneaged cover rocks between Doğanhisar and Hüyük. These metamorphic rocks areknown as Sultandağları Masif in literature. The objective of this study is to elucidatethe structural and geological evolution of the basement rocks of the massif.The Lower (?)-Middle Cambrian- Lower Ordovician Çaltepe Formationforms the base of the metamorphic rocks. It is made up of recrystallized reeflimestone and dolomite. The Upper Cambrian- Lower Ordovician SultandedeFormation conformably overlies the base unit and consists of phyllite andmetasandstone intercalated with recrystallized limestone and metaconglomerate. TheMiddle- Upper Devonian Engilli Formation overlies them with an angularunconformity. It is conformably overlain by the Lower- Middle Carboniferous6Kirazlı Formation represented by originally been limestone and mudstone. It isvertically and laterally graded upward to Harlak Formation. This metamorphicsequence ends with the Middle Carboniferous- Upper Permian Deresinek Formation.Metamorphic rocks have undergone regional metamorphism under low grademetamorphic condition and three phases of deformation during the Alpine orogeny.These are, in sequence (1) schistosity planes, (2) NW-SE trending folds and (3) NE-SW trending folds.The geological evolution of the study area ended by the development of faultsin the neotectonic period. The Miocene-Pliocene aged sediments were accumulatedin the environments controlled by the faults.Key words: Sultandağı, Doğanhisar, Hüyük, metamorphism, poly phasedeformation. 83
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- 2005
32. BENİGN TİROİD CERRAHİSİNDE POSTOPERATİF KOMPLİKASYONLARI ETKİLEYEN RİSK FAKTÖRLERİ
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BOZDAĞ, Ali Doğan, ÇEVİKEL, Mehmet Hakan, DEMİRKIRAN, Ahmet Ender, ERPEK, Hakan, BOYLU, Şükrü, and ÖZGÜN, Hedef
- Subjects
endocrine system ,Tiroid cerrahisi,komplikasyonlar,nervus rekürrens,total tiroidektomi ,endocrine system diseases ,Thyroid surgery,complications,recurrent laryngeal nerve,total thyroidectomy - Abstract
Aim: The aim of this study is to investigate the risk factors for postoperative complications after benign thyroid surgery. The most frequent complications after thyroid surgery are recurrent laryngeal nerve and superior laryngeal nerve injury, hypoparathyroidism, bleeding, hematoma, wound infection and flap edema. These complications may influence the life quality of the patient. Method: In Adnan Menderes University Department of General Surgery, 224 patients who underwent thyroid surgery were evaluated retrospectively for postoperative complications. Age, gender, antithyroideal treatment, thyroid disease, recurrent goitre, ligation of inferior thyroid artery, identification of nervus recurrens and parathyroid glands, extent of resection and usage of drains were investigated for morbidity. Total thyroidectomy was found to be the only statistically significant (p=0.001) risk factor. Conclusion: The complication risk following wide resection of the thyroid gland should be prevented by a meticulous surgicaltechnique.
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- 2002
33. The effective risk factors on postoperative complications in benign thyroid surgery
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Bozdağ, Ali Doğan, Çevikel, Mehmet Hakan, Demirkıran, Ahmet Ender, Erpek, Hakan, Boylu, Şükrü, Özgün, Hedef, TR11766, TR11353, TR44513, TR150621, TR150622, and Adnan Menderes Üniversitesi Tıp Fakültesi Genel Cerrahi Anabilim Dalı
- Subjects
Tiroid Cerrahisi ,Nervus Rekürrens ,Complications ,Recurrent Laryngeal Nerve ,Thyroid Surgery ,Komplikasyonlar ,Total Tiroidektomi ,Total Thyroidectomy - Abstract
Amaç: Tiroid cerrahisi sonrası en sık karşılaşılan komplikasyonlar nervus rekürrens ve nervus laryngeus superior yaralanmaları, hipoparatiroidi, kanama, hematom, yara enfeksiyonu ve flep ödemidir. Hastayı yaşamı boyunca etkileyebileceği için önem taşırlar. Bu çalışmanın amacı benign tiroid cerrahisi sonrası gelişen komplikasyonları etkileyen risk faktörlerinin araştırılmasıdır. Materyel ve Metod: Mart 1997 - Eylül 2000 tarihleri arasındaAdnan Menderes Üniversitesi Tıp Fakültesi Genel Cerrahi Anabilim Dalı'nda benign tiroid hastalığı nedeniyle opere edilen 224 tiroid olgusu postoperatif Bulgular: komplikasyonlar açısından retrospektif olarak değerlendirildi. Yaş, cins, antitiroidal ilaç kullanımı, tiroid hastalığı, nüks guatr, inferior tiroid arterin bağlanması, nervus rekürrensin ve paratiroidlerin görülmesi, yapılan operasyon tipi ve dren kullanılmasının morbiditeye etkileri araştırıldı. Komplikasyon gelişmesini etkileyen faktörler arasında total tiroidektomi istatistiksel olarak anlamlı (p=0.001) bulunmuştur. Sonuç Cerrahi olarak çıkarılan tiroid doku genişliğinin beraberinde getireceği komplikasyon riski dikkatli bir teknikle önlenmelidir. Aim: The aim of this study is to investigate the risk factors for postoperative complications after benign thyroid surgery. The most frequent complications after thyroid surgery are recurrent laryngeal nerve and superior laryngeal nerve injury, hypoparathyroidism, bleeding, hematoma, wound infection and flap edema. These complications may influence the life quality of the patient. Method: In Adnan Menderes University Department of General Surgery, 224 patients who underwent thyroid surgery were evaluated retrospectively for postoperative complications. Age, gender, antithyroideal treatment, thyroid disease, recurrent goitre, ligation of inferior thyroid artery, identification of nervus recurrens and parathyroid glands, extent of resection and usage of drains were investigated for morbidity. Total thyroidectomy was found to be the only statistically significant (p=0.001) risk factor. Conclusion: The complication risk following wide resection of the thyroid gland should be prevented by a meticulous surgicaltechnique.
- Published
- 2002
34. Alveolar echinococcosis of the pancreas
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Bozdağ, Ali Doğan, Nazh, Okay, Peker, Yasin, Tansunğ, Tuğrul, Kaymak, Erol, and Uluç, Engin
- Published
- 2000
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35. Effect of Sildenafil on the Skeletal Muscle Regeneration: An Experimental Study
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DİNİZ, Gülden, primary, DERİCİ, Hayrullah, additional, KAMER, Erdinç, additional, ÜNALP, Haluk Recai, additional, BOZDAĞ, Ali Doğan, additional, TANSUĞ, Tuğrul, additional, ORTAÇ, Ragıp, additional, and ERBİL, Yeşim, additional
- Published
- 2011
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36. Band Ligation of the Perforated Gall Bladder During Laparoscopic Cholecystectomy
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Derici, Hayrullah, primary, Bozdağ, Ali Doğan, additional, Tansug, Tugrul, additional, Nazli, Okay, additional, and Reyhan, Enver, additional
- Published
- 2007
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37. Vascular Reconstruction of Hepatic Artery Injury Using the Gastroduodenal Artery: 6-Year Follow-Up–Case Report
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Bozdağ, Ali Doğan, primary, Peker, Yasin, additional, Özer, Mustafa, additional, Derici, Hayrullah, additional, and Uluç, Engin, additional
- Published
- 2002
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38. Karaciğerde kitleyi taklit eden asemptomatik gossipiboma.
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Sözütek, Alper, Karabuğa, Türker, Bozdağ, Ali Doğan, and Derici, Hayrullah
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ABDOMINAL pain ,DIAGNOSTIC imaging ,SURGICAL complications ,SURGICAL sponges ,SURGICAL equipment ,OPERATIVE surgery ,CIRRHOSIS of the liver ,CHOLECYSTECTOMY ,GALLBLADDER surgery - Abstract
Copyright of Turkish Journal of Surgery / Ulusal Cerrahi Dergisi is the property of Turkish Surgery Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
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39. Stapler hemoroidektominin yaşam kalitesine etkisinin SF-36 ölçeği ile değerlendirilmesi.
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Bozdağ, Ali Doğan and Sayım, Nazmi Yaşar
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- 2013
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40. Quality of life after stapler haemorrhoidectomy evaluated by SF-36 questionnaire.
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Bozdağ, Ali Doğan and Sayım, Nazmi Yaşar
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- 2013
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41. Basit ve ekonomik bir laparoskopik eğitim kutusu.
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Bozdağ, Ali Doğan, Tansuğ, Tuğrul, Derici, Hayrullah, Kara, Cemal, Sözütek, Alper, Karabuğa, Türker, and Nazli, Okay
- Published
- 2009
42. Dikiş alıcı alet ile klasik dikiş alıcı aletlerin karşılaştırılması
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Bilgiç, Ethem, Bozdağ, Ali Doğan, and Genel Cerrahi Ana Bilim Dalı
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Sutures ,Suture techniques ,General Surgery ,Surgical instruments ,Wound healing ,Surgery ,Surgical equipment ,Genel Cerrahi - Abstract
Giriş: Yara iyileşmesi araştırmacıların başlıca uğraş alanı olmuştur. Sadece sutur atma değil, sutur alma sırasında da çeşitli yangısal olaylar ortaya çıkmaktadır. Biz hem kolay, hem de yara yerine hasarsız, sutur almayı kolaylaştırıcı yeni bir alet tasarladık ve aletimiz için patent aldık. Yeni sutur alıcı aletimizin işlevselliğini hayvan deneyi ile kanıtlamaya çalıştık. Materyal Metod: Toplam 14 adet Sprague-Dawley tipi rat çalışmaya alındı. İki grup oluşturuldu. Birinci gruptaki 7 ratın suturleri yeni tasarım dikiş alıcı alet ile alınırken, 2. gruptaki 7 ratın suturleri klasik yöntem olan penset ve bistüri ile alındı. Deneklerin hazırlanması, yara oluşturma ve yara bakım tekniği, ratların kiloları, sutur alma hızları, yara yeri histopatolojileri istatistikler olarak değerlendirildi. Bulgular: Ratlar arası ağırlıklarda anlamlı bir fark bulunmadı (p 0,652). Sutur alma zamanları incelendiğinde yeni alet ile klasik yöntem arasında istatistiksel olarak anlamlı değildi (p
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- 2014
43. Gallbladder perforation: clinical presentation, predisposing factors, and surgical outcomes of 46 patients.
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Derıcı H, Kamer E, Kara C, Ünalp HR, Tansuğ T, Bozdağ AD, and Nazli O
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- Age Factors, Aged, Cholecystectomy, Laparoscopic, Cholecystitis, Acute complications, Female, Gallbladder Diseases surgery, Humans, Incidence, Male, Middle Aged, Retrospective Studies, Risk Factors, Tomography, X-Ray Computed, Treatment Outcome, Gallbladder Diseases diagnosis, Gallbladder Diseases etiology
- Abstract
Background/aims: We aimed to investigate the clinical features and the relation between patient characteristics and the different types of gallbladder perforation and to determine the predisposing factors., Material and Methods: The medical records of 478 patients who received urgent surgical treatment with the diagnosis of acute cholecystitis and underwent urgent surgery in our clinics between January 1997 and November 2008 were reviewed retrospectively. The demographic data of patients, time elapsed from the onset of the symptoms to the time of surgery, comorbidity status, American Society of Anesthesiologists classification, laboratory data, imaging results, surgical procedures, postoperative complications, and postoperative length of stay of the patients were analyzed., Results: There were 46 (9.6%) patients with the diagnosis of gallbladder perforation. Morbidity and mortality occurred in 15 (32.6%) and 7 (15.2%) patients, respectively. Advanced age, male gender, fever >38°C, high white blood cell count, and presence of cardiovascular comorbidity were found to be significant risk factors for gallbladder perforation., Conclusions: While early diagnosis and early surgical intervention are the keys to managing gallbladder perforation, we suggest that patients having the above-mentioned clinical features should be carefully investigated.
- Published
- 2011
44. Spontaneous healing of gallbladder perforation: report of a case.
- Author
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Kara C, Derıcı H, Tansuğ T, Nazli O, and Bozdağ AD
- Subjects
- Aged, Cholecystectomy, Laparoscopic, Cholecystitis, Acute physiopathology, Cholecystitis, Acute surgery, Female, Gallbladder physiopathology, Humans, Remission, Spontaneous, Rupture, Spontaneous, Time Factors, Cholecystitis, Acute pathology, Gallbladder pathology, Wound Healing physiology
- Abstract
Gallbladder perforation is a serious complication of acute cholecystitis. Spontaneous healing is very rare, and only three cases have been reported in the English literature. In this study, we present a 73-year-old female patient who underwent a laparoscopic cholecystectomy years after a gallbladder perforation and spontaneous healing.
- Published
- 2010
- Full Text
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