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Compensating the effects of DC bias lines on terahertz photomixer antennas using resistively loaded lines

红外与毫米波学报 2015年第4期34卷 420-426页

作者： adem yilmaz mehmet unlu Electrical and Electronics Engineering Department Yildirim Beyazit University Ankara Turkey Cankiri Caddesi Cicek Sokak No: 3 Ulus Ankara 06030 Turkey

This paper proposed a method,namely resistively loaded lines(RLL),to compensate the effects of the DC bias lines after investigating its effects on several types of antennas for terahertz *** RLL is formed by placing lumped resistances periodically on the DC bias line in order to cease the leakage current virtually,w hich cause a significant amount of distortion on the antenna *** simulation results of the dipole,folded dipole,log-periodic,and spiral antennas show that RLL almost removes the effects of the bias lines and improves the antenna radiation resistance and radiation pattern notably compared w ith that of the commonly used bias line types,such as coplanar stripline and photonic bandgap type bias lines.

关键词：红外技术毫米波技术光电技术应用

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Ectopic liver tissue (choristoma) on the gallbladder: Acomprehensive literature review

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World Journal of Gastrointestinal Surgery 2020年第12期12卷 534-548页

作者： Sami Akbulut Khaled Demyati Felat Ciftci Cemalettin Koc adem Tuncer Emrah Sahin Nese Karadag Sezai yilmaz Department of Liver Transplant Institute Inonu UniversityMalatya 44280Turkey Department of Surgery An-Najah National UniversityNablus 11941Palestine Department of Pathology Inonu University Faculty of MedicineMalatya 44280Turkey

BACKGROUND Liver tissue situated outside the liver with a hepatic connection is usually calledan accessory liver, and that without a connection to the mother liver, is calledectopic liver *** To identify studies in the literature on ectopic liver tissue located on thegallbladder surface or *** We present two patients and review published articles on ectopic liver tissuelocated on the gallbladder surface accessed via PubMed, MEDLINE, GoogleScholar, and Google databases. Keywords used included accessory liver lobe,aberrant liver tissue, ectopic liver tissue, ectopic liver nodule, heterotopic livertissue, hepatic choristoma, heterotopic liver tissue on the gallbladder, and ectopicliver tissue on the gallbladder. The search included articles published before June2020 with no language restriction. Letters to the editor, case reports, reviewarticles, original articles, and meeting presentations were included in the *** or abstracts containing adequate information on age, sex, history of liverdisease, preliminary diagnosis, radiologic tools, lesion size, surgical indication,surgical procedure, and histopathological features of ectopic liver tissue wereincluded in the *** A total of 72 articles involving 91 cases of ectopic liver tissue located on the gallbladder surface or mesentery were analyzed. Of these 91 patients, 62 werefemale and 25 were male (no gender available for 4 patients), and the age rangewas 5 d to 91 years. Forty-nine patients underwent surgery for chroniccholecystitis or cholelithiasis, and 14 patients underwent surgery for acutecholecystitis. The remaining 28 patients underwent laparotomy for other *** was laparoscopic in 69 patients and open in 11 patients. Theremaining 19 patients underwent various other surgical procedures such asautopsy, liver transplantation, living donor hepatectomy, Whipple procedure, andliver segment V resection. Histopathologically, hepatocellular carcinoma wasdetect

关键词： Liver Gallbladder Ectopic liver tissue Hepatic choristoma Histopathological features Hepatocellular carcinoma

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Role of serological rapid antibody test in the management of possible COVID-19 cases

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World Journal of Experimental Medicine 2021年第4期11卷 44-54页

作者： Fatma Yıldırım Pinar Yildiz Gulhan Ozlem Ercen Diken Aylin Capraz Meltem Simsek Berna Botan Yildirim Muhammet Ridvan Taysi Sakine yilmaz Ozturk Nurcan Demirtas Julide Ergil adem Dirican Tugce Uzar Irem Karaman Sevket Ozkaya Department of Pulmonary and Critical Care Medicine University of Health Sciences Diskapi Yildirim Beyazit Research and Education HospitalAnkara 06110Turkey Department of Pulmonary Medicine Düzce UniversityFaculty of MedicineDüzce 81100Turkey Department of Chest Diseases Adana Research and Education HospitalUniversity of Health SciencesAdana 01230Turkey Department of Pulmonary Medicine Amasya University Sabuncuoglu Serefeddin Research and Education HospitalAmasya 05200Turkey Medical Intensive Care Unit University of Health Sciences Diskapi Yildirim Beyazit Research and Education HospitalAnkara 06110Turkey Department of Pulmonology Research and Education Hospital of Baskent UniversityKonya 42030Turkey Department of Infectious and Clinical Microbiology University of Health Sciences Diskapi Yildirim Beyazit Research and Education HospitalAnkara 06110Turkey Department of Pulmonary Medicine Vezirkopru State HospitalSamsun 55090Turkey Department of Pulmonary Medicine Kumluca State HospitalAntalya 07070Turkey Department of Anaesthesiology and Reanimation Diskapi Yildirim Beyazit Research and Education HospitalUniversity of Health SciencesAnkara 06110Turkey Department of Pulmonary Medicine Samsun Medicalpark HospitalSamsun 55090Turkey Irem Karaman Medical Student/InternBahcesehir University Faculty of MedicineIstanbul 34734Turkey Department of Pulmonary Medicine Bahcesehir UniversityFaculty of MedicineIstanbul 34734Turkey

Although the detection of viral particles by reverse transcription polymerase chain reaction(RT-PCR)is the gold standard diagnostic test for coronavirus disease 2019(COVID-19),the false-negative results constitute a big *** To examine a group of patients diagnosed and treated as possible COVID-19 pneumonia whose multiple nasopharyngeal swab samples were negative for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)by RT-PCR but then serological immunoglobulin M/immunoglobulin G(IgM/IgG)antibody against SARS-CoV-2 were detected by rapid antibody *** Eighty possible COVID-19 patients who had at least two negative consecutive COVID-19 RT-PCR test and were subjected to serological rapid antibody test were evaluated in this *** The specific serological total IgM/IgG antibody against SARS-CoV-2 was detected in twenty-two *** mean age of this patient group was 63.2±13.1-yearsold with a male/female ratio of 11/*** was the most common symptom(90.9%).The most common presenting chest computed tomography findings were bilateral ground glass opacities(77.2%)and alveolar consolidations(50.1%).The mean duration of time from appearance of first symptoms to hospital admission,to hospital admission,to treatment duration and to serological positivity were 8.6 d,11.2 d,7.9 d,and 24 d,*** with reference laboratory values,serologically positive patients have shown increased levels of acute phase reactants,such as C-reactive protein,ferritin,and procalcitonin and higher inflammatory markers,such as erythrocyte sedimentation rate,lactate dehydrogenase enzyme,and fibrin end-products,such as D-dimer.A left shift on white blood cell differential was observed with increased neutrophil counts and decreased *** Our study demonstrated the feasibility of a COVID-19 diagnosis based on rapid antibody test in the cases of patients whose RT-PCR samples were *** of antibodies against SARS-CoV-2 with

关键词： COVID-19 Rapid antibody test Reverse transcription polymerase chain reaction High resolution computed tomography Serology Pneumonia

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