Perihan Balcı'nın "Türk evleri" mücadelesi

Taha Toros Arşivi, Dosya No: 24-Perihan-Ergun Balc

Use of UAV Data and HEC-RAS Model for Dimensioning of Hydraulic Structures on Forest Roads

forest roads should have the capability to drain the expected maximum discharge for a 50-year return period during their lifespan (i.e., 20 years). In Türkiye, Talbot’s formula, as empirical method, has commonly been used in determining the required cross-sectional area (CSA) of the structures. However, in practice, forest road engineers in Türkiye do not pay enough attention to their construction with required dimensions calculated by Talbot’s formula. In the present study, the Hydrological Engineering Centre – River Analysis System (HEC-RAS) model was used to evaluate the dimensions of installed structures in terms of their ability to drain maximum discharges, with the aim of determining the required dimensions for those that could not meet this requirement. To this purpose, the 6+000 km forest road No. 410 in Acısu Forest Enterprise, Gerede Forest Directorate (Bolu, Türkiye) was selected as the study area. In total, 15 small watersheds crossed by the forest road were delineated, with only six of them having cross-drainage structures. The HEC-RAS model geometry was generated by manual unmanned aerial vehicle (UAV) flights at altitudes of 5–15 m, providing very high spatial resolution (<1 cm). The maximum discharges of the watersheds were estimated for the HEC-RAS model using the Rational, Kürsteiner, and Soil Conservation Service-Curve Number (SCS-CN) methods. Maximum discharges of 0.18–6.03 were found for the Rational method, 0.45–4.46 for the Kürsteiner method, and 0.25–7.97 for the SCS-CN method. According to the HEC-RAS hydraulic model CSA simulations, most of the installed culvert CSAs calculated by Talbot’s formula were found to be incapable of draining maximum discharges. The study concluded that the HEC-RAS model can provide accurate and reliable results for determining the dimensions of such structures for forest roads

Ormanların heyelan oluşumu üzerindeki etkileri

Özellikle dağlık bölgelerde ortaya çıkan stabilite problemlerinin olumsuz sonuçlarından dolayı, heyelanlar üzerindeki etkileri bakımından ormanların ve ormancılık faaliyetlerinin önemi ormanların koruma fonksiyonu ile birlikte giderek artmaktadır. Ormanlar ve ormancılık faaliyetleri (ağaç kesimi, yol inşası gibi) heyelan kaynaklı stabilite problemleri açısından literatürde çeşitli yönleriyle çalışılmıştır. Ancak orman örtüsünün mevcudiyetinin etkileri ile ormancılık faaliyetlerinin heyelanlar üzerindeki etkilerinin nasıl ve ne yönde olduğuna dair yapılan çalışmaların temel alınarak tartışıldığı bir derleme çalışmaya ihtiyaç olduğu dikkat çekmektedir. Bu makalede bu ihtiyaç göz önüne alınarak orman-heyelan ve ormancılık-heyelan konularında uluslararası düzeyde yapılan çalışmalar incelenerek tartışılmıştır. Anahtar kelimeler: Heyelan, Orman, Ormancılık, Vejetasyo

Laparoscopic cholecystectomy technique in a patient with situs inversus totalis

Situs inversus totalis is a rare congenital anomaly. It mayproduce difficulties in diagnosis and therapeutic managementof abdominal pathology, particularly in laparoscopicsurgery because of the mirror-image anatomy. Here wereport a case of situs inversus totalis and cholelithiasissuccessfully treated laparoscopically.Key words: Situs inversus totalis, cholelithiasis, laparoscopiccholecystectom

Influence of infliximab pretreatment on ischemia/reperfusion injury in rat intestine

Erdivanli, Basar/0000-0002-3955-8242;WOS: 000335969500004PubMed: 24802959The Pringle maneuver is used in hepatic surgery to prevent blood loss but is associated with ischemia-reperfusion injury. To investigate the effect of infliximab on inflammation and apoptosis in rat intestinal mucosa during ischemia-reperfusion (IR) injury. A total of 30 male Wistar albino rats were equally divided into three groups to be subjected to (i) sham operation (sham), (ii) IR injury via Pringle maneuver (pringle) or (iii) infliximab (IFX) group (IFX was given at a dose 3 mg/kg for 3 days before IR injury). Following reperfusion period of 60 min., intestinal tissue and blood samples were taken and processed by standard histological methods. the Pringle maneuver and following reperfusion caused significant histopathological changes, increased serum transaminases' activity and the levels of oxidative stress markers and decreased glutathione peroxidase activity. IFX pretreatment partially prevented these changes. Infliximab pretreatment may protect intestinal mucosa against ischemia-reperfusion injury. Further studies are needed to investigate mechanism and evaluate safety and optimal dosing of IFX in humans exposed to the possible tissue damage by ischemia-reperfusion

Using Machine Learning in Forestry

Advanced technology has increased demands and needs for innovative approaches to apply traditional methods more economically, effectively, fast and easily in forestry, as in other disciplines. Especially recently emerging terms such as forestry informatics, precision forestry, smart forestry, Forestry 4.0, climate-intelligent forestry, digital forestry and forestry big data have started to take place on the agenda of the forestry discipline. As a result, significant increases are observed in the number of academic studies in which modern approaches such as machine learning and recently emerged automatic machine learning (AutoML) are integrated into decision-making processes in forestry. This study aims to increase further the comprehensibility of machine learning algorithms in the Turkish language, to make them widespread, and be considered a resource for researchers interested in their use in forestry. Thus, it was aimed to bring a review article to the national literature that reveals both how machine learning has been used in various forestry activities from the past to the present and its potential for use in the future

Hafif müzikte sentez arayışları

Taha Toros Arşivi, Dosya No: 481-Muhtelif Gazete Kupürleri (Musiki İle İlgili)Unutma İstanbul projesi İstanbul Kalkınma Ajansı'nın 2016 yılı "Yenilikçi ve Yaratıcı İstanbul Mali Destek Programı" kapsamında desteklenmiştir. Proje No: TR10/16/YNY/010

(The prevalence of gestational diabetes mellitus in NamÕk Kemal University Training and Research Hospital)

Giriş: Her yıl önemli sayıda kadını etkileyen Gestasyonel diabetes mellitus (GDM) hem gebeler hem de bebekleri için istenmeyen sağlık problemlerine yol açmaktadır. Bu çalışma, Namık Kemal Üniversitesi Araştırma ve Uygulama Hastanesinde Gestasyonel Diyabetes Mellitus prevalansını değerlendirmeyi ve diğer çalışmaların sonuç- larıyla karşılaştırmayı amaçlamaktadır. Materyal ve Metot: Ocak 2010 ile Mayıs 2013 tarihleri arasında 24 28 Haftalık gebelik süresinde Namık Kemal Üniversitesi Araştırma ve Uygulama Hastanesinde kabul edilen gebeler çalışmaya dahil edildi. Yapılan dosya taramasında 502 gebeye 50 gram Glukoz Yükleme Testi (GYT) uygulandığı, test sonuçlarına göre bunların 29una da 100 gram Oral Glukoz Tolerans Testi (OGTT) yapıldığı tespit edildi. Bulgular: Gebelerin tamamına yapılan 50 g Glukoz Yükleme Testi 29 olguda pozitif olarak bulundu. Tarama testi yapılan gebelerin 13 tanesinde 100 g OGTT pozitif olarak değerlendirilmiş ve hastanemize başvuran gebelerin gestasyonel diyabet prevelansı Carpenter ve Caustan kriterlerine göre %2,59 bulunmuştur. Sonuçlar: Gestasyonel diabetes mellitus prevalansı Namık Kemal Üniversitesi Araştırma ve Uygulama Hastanesinde Türkiyenin diğer bölgelerinden rapor edilen epidemiyolojik çalışmalara göre daha düşük bulundu.Background: Gestational diabetes mellitus (GDM) affects a significant number of women each year and it is associated with a wide range of adverse outcomes for pregnants and their babies. The present study aimed to evaluate the prevalence of Gestational diabetes mellitus in Nam&Otilde;k Kemal University Training and Research Hospital and to compare the results of other studies. Material and Methods: From January 2010 to May 2013, patients admitted to gynecology clinic with 24 28 week pregnancy were studied. A glucose challenge test (GCT) was given to 502 pregnant women and based on the results 29 went on to take an oral glucose tolerance test (OGTT). Results: 502 pregnant women tested, Fifty gram Glucose Challenge Test was performed on all pregnant women which was positive only in 29 cases, and in 13 of them 100 gram oral glucose tolerance test was positive The prevalence of gestational diabetes in pregnant women who were admitted to our hospital was 2.59% according to Carpenter and Caustan diagnostic criteria Conclusions: The prevalence of Gestational diabetes mellitus was found to be lower in in Nam&Otilde;k Kemal University Training and Research Hospital rather than the other regions of Turkey as reported in epidemiological studies