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Single-station microtremor surveys for site characterization:A case study in Erzurum city,eastern Turkey

Earthquake Engineering and Engineering Vibration 2024年第3期23卷 563-576页

作者： Fatih Karsli erdem bayrak The Higher Education Credit and Hostels Institution Ministry of Youth and SportsErzurum 25240Turkey Earthquake Research Centre Ataturk UniversityErzurum 25240Turkey Department of Civil Engineering Ataturk UniversityErzurum 25240Turkey

The single-station microtremor method is one of the fastest,most reliable,and cheapest methods used to identify dynamic soil *** study utilizes 49 single-station microtremor measurements to identify the dynamic soil properties of the Hilalkent quarter of the Yakutiye district in *** dominant frequency and the amplification factor were calculated by using the Nakamura horizontal/vertical spectral ratio(H/V)*** the soil dominant frequency values varied between 0.4 Hz and 10 Hz,the soil amplification factor changed between 1 and *** H/V values were acquired with lower frequency *** vulnerability index(K_(g))and shear strain parameters that are utilized to estimate the damage that may be caused by an earthquake were *** in the west side of the study area,higher K_(g) values were *** shear strain map was created with 0.25 g,0.50 g and 0.75 g bedrock accelerations,and soil types that lost elasticity during an earthquake were *** average shear wave velocity for the first 30 m(V_(s30))was ***,it was observed that the western part of the study area,which resulted in a higher period and higher H/V,higher K_(g) and lower V_(s30) values,presents a higher risk of damage during an earthquake.

关键词： Nakamura horizontal/vertical spectral ratio single-station microtremor predominant frequency vulnerability index Erzurum

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Intraoperative acidosis is a new predictor for postoperative pancreatic fistula after pancreaticoduodenectomy

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Hepatobiliary & Pancreatic Diseases International 2016年第3期15卷 302-309页

作者： erdem Kinaci Mert Mahsuni Sevinc Abdulkerim Ozakay Savas bayrak Ekrem Cakar Serkan Sari Istanbul Training and Research Hospital Department of General Surgery

BACKGROUND： Early diagnosis of postoperative pancreatic fistula （POPF） is important for proper interventions. The pre- operative, intraoperative and early postoperative biochemical markers have predictive value of ... 详细信息

关键词： acidosis fistula intraoperative predictor pancreaticoduodenectomy

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Extraordinary cause of acute gastric dilatation and hepatic portal venous gas: Chronic use of synthetic cannabinoid

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World Journal of Gastroenterology 2015年第37期21卷 10704-10708页

作者： Mert Mahsuni Sevinc erdem Kinaci Savas bayrak Aytul Hande Yardimci Ekrem Cakar Hasan Bektas Department of General Surgery Istanbul Training and Research Hospital Org. Nafiz Gurman Cad. Istanbul Egitim ve Arastirma Hastanesi Genel Cerrahi Klinigi Department of Radiology Istanbul Training and Research Hospital

Addiction to synthetic cannabinoids(SCs) is a growing social and health problem worldwide. Chronic use of SCs may cause adverse effects in the gastrointestinal system. We describe a very rare case of acute gastric dilatation(AGD) and hepatic portal venous gas(HPVG),with findings of acute abdomen resulting from chronic use of a SC, Bonzai. AGD and HPVG were detected by computerized tomography examination. Patchy mucosal ischemia was seen in endoscopic examination. Despite the findings of an acute abdomen, a non-surgical approach with nasogastric decompression, antibiotic therapy, and close radiologic and endoscopic followup was preferred in the presented case. Clinical and radiologic findings decreased dramatically on the first day, and endoscopic findings gradually disappeared over 7 d. In conclusion, this case shows that chronic use of a SC may cause AGD and accompanying HPVG,which can be managed non-surgically despite the findings of acute abdomen.

关键词： Acute abdomen Acute gastric dilatation Bonzai Synt

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