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Prediction of the undrained shear strength of remolded soil with non-linear regression,fuzzy logic,and artificial neural network

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Journal of Mountain Science 2024年第9期21卷 3108-3122页

作者： YÜNKÜL Kaan karaÇOR fatih GÜRBÜZ Ayhan BUDAK TahsinÖmür Department of Civil Engineering Faculty of Engineering and ArchitectureTokat Gaziosmanpaşa UniversityTokat 60100Türkiye Department of Civil Engineering Faculty of Engineering and ArchitectureKafkas UniversityKars 36000Türkiye Department of Civil Engineering Faculty of EngineeringGazi UniversityAnkara 06570Türkiye Ministry of Youth and Sports Ankara 06090Türkiye

This study aims to predict the undrained shear strength of remolded soil samples using non-linear regression analyses,fuzzy logic,and artificial neural network modeling.A total of 1306 undrained shear strength results from 230 different remolded soil test settings reported in 21 publications were collected,utilizing six different measurement *** water content,plastic limit,and liquid limit were used as input parameters for fuzzy logic and artificial neural network modeling,liquidity index or water content ratio was considered as an input parameter for non-linear regression *** non-linear regression analyses,12 different regression equations were derived for the prediction of undrained shear strength of remolded ***-Forward backpropagation and the TANSIG transfer function were used for artificial neural network modeling,while the Mamdani inference system was preferred with trapezoidal and triangular membership functions for fuzzy logic *** experimental results of 914 tests were used for training of the artificial neural network models,196 for validation and 196 for *** was observed that the accuracy of the artificial neural network and fuzzy logic modeling was higher than that of the non-linear regression ***,a simple and reliable regression equation was proposed for assessments of undrained shear strength values with higher coefficients of determination.

关键词： Undrained shear strength Liquidity index Water content ratio Non-linear regression Artificial neural networks Fuzzy logic

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Thyroid hormone levels during early periods of ischemic and hemorrhagic stroke could serve as an indicator of prognosis

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Neural Regeneration Research 2009年第9期4卷 659-662页

作者： Baylr Ayssegül Ak Ahmet dinc Serife Seydanoglu Abdüsselam Kstekci Senol Kadir kara fatih Department of Emergency Medicine Selcuk University Faculty of MedicineMeramKonya 42080Turkey Department of Emergency Medicine Konya Numune HospitalKonya 42080Turkey Department of Emergency Medicine Karabük Devlet HospitalKarabük 42080Turkey Department of Community Medicine and Public Health Selcuk University Faculty of MedicineMeramKonya 42080Turkey

BACKGROUND： Predicting the outcome of stroke during the acute phase is difficult. Accurate methods for predicting outcomes could assist clinicians and families to make correct decisions in resource-poor environments. OBJECTIVE： To determine thyroid hormone levels in patients with ischemic or hemorrhagic stroke at the early stage, and to investigate its correlation with stroke prognosis. DESIGN, TIME AND SETTING： A comparative, observational study was performed at the Department of Emergency, Tertiary-care University Affiliated Hospital from January 2004 to January 2006. PARTICIPANTS： A total of 113 patients presenting to the Emergency Department within 3 hours of stroke symptom onset were approached for enrollment in the study. The patients were diagnosed by computer tomography examination, and comprised 87 ischemic stroke and 26 hemorrhagic stroke patients. METHODS： Following a thorough history and examination by emergency physicians, venous blood samples were collected from each patient. Thyroid-stimulating hormone （TSH）, free triiodothyronine （free T3）, and free thyroxine （free T4） levels were measured using a chemiluminescence method. The nerve function of patients was evaluated with Glasgow Coma Scale （GCS） score, and the patients were accordingly assigned to two subgroups-mild stroke （GCS ≥ 9） and severe stroke （GCS ≤ 8）. MAIN OUTCOME MEASURES： Blood levels of TSH, free T3 and free T4; mortality at 7 days. RESULTS： Mean TSH values in hemorrhagic stroke patients with GCS ≤ 8 were significantly greater than those in ischemic stroke patients with GCS ≤ 8 and GCS ≥ 9 （P 〈 0.05）. Compared with patients who survived, the highest TSH levels were detected in patients that had died within 7 days. Correlation analysis results revealed a significant negative relationship between GCS values and TSH levels in patients with hemorrhagic stroke （r= 0.552, P〈 0.01）, and no correlation was determined between GCS values and TSH levels in patients with ischemic stroke （r = 0.239,

关键词： ischemic stroke hemorrhagic stroke thyroid hormones prognosis

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An Anatomical and Radiological Study of Origins of the Arteries Forming the Celiac Trunk: Clinical and Embryological Implications

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Forensic Medicine and Anatomy Research 2023年第2期11卷 15-29页

作者： Fahrettin fatih Kesmezacar Cem Kopuz Onur Tutar Kubilay Kınoglu Erdoğan kara Vocational School of Health Services Istanbul University-Cerrahpa&#351a Istanbul Turkey Department of Anatomy Medical Faculty Kütahya Health Sciences University Kütahya Turkey Department of Radiology Cerrahpa&#351a Medical Faculty Istanbul University-Cerrahpa&#351a Istanbul Turkey Forensic Medicine Institution Ministry of Justice Istanbul Turkey

The blood supply to the most of abdominal organs is provided by the branches of CT. The SMA supply caecum, ascends colon, all of the small bowels except the upper part of duodenum. Knowledge of variable anatomy of celiac axis and SMA may be useful in planning and executing radiological interventions such as celiacography and chemoembolization of hepatic and pancreatic tumors. In this study, the uncommon or low percentage cases of CT and SMA are presented in the light of clinical and embryological information. The celiac axises of a total of 30 adult corpses were examined. Dissections of abdominal region were performed in detail according to Cunningham’s manual. Angiographic images of 100 consecutive adult patients who underwent celiac MDCT angiography were evaluated. During autopsies, an incomplete celiac trunk or bifurcation of celiac trunk associated with the hepatomesenteric and gastrosplenic trunks (0.7%) and a celiacomesenteric trunk associated with high origin superior mesenteric artery and gastrosplenic trunk were detected (0.7%). During MDCT angiography, a case of total absence of celiac trunk associated with a hepatosplenomesenteric trunk (0.7%) and also a case of total absence of celiac trunk alone were observed (0.7%). The persistence or unusual development of ventral splanchnic arteries (VSAs) or ventral longitudinal anastomosis may result in variations or the unusual trunks related to celiac axis and SMA. The anomalous trunks of the CT may be result of either the persistence of some parts of the VSAs or ventral longitudinal anastomose that normally disappear or disappearance of parts that normally persist. The prevalence of unusual trunks of celiac axis and SMA in this study is quite low in literature. These abnormal vessels pose problems for surgeons and radiologists. Such vascular anomalies may cause clinical complications following surgical and radiological procedures such as resection of tumor of the pancreatic head, lymphadenectomy, coeliacography,

关键词： Celiac Trunk Superior Mesenteric Artery Variation Hepatosplenomesenteric Trunk Celiacomesenteric Trunk Embryology

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Functioning Adrenocortical Oncocytic Carsinoma: A Case Report

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Open Journal of Endocrine and Metabolic Diseases 2013年第1期3卷 42-45页

作者： Murat Atmaca Saliha Yildiz Isilay Kalan Mehmet fatih Ozbay Deniz Yilmaz Muge kara Tanritanir Mustafa Ozturk Department of Endocrinology and Metabolism Faculty of MedicineYuzuncu Yil UniversityVanTurkey Department of Internal Medicine Van Education and Research HospitalVanTurkey Department of Pathology Yuzuncu Yil UniversityVanTurkey Department of Endocrinology and Metabolism Faculty of MedicineMedipol UniversityİstanbulTurkey

Introduction: Oncocytic neoplasms of the adrenal cortex are extremely rare and are usually nonfunctioning. Only a little more than fifty cases have been described in the literature. Case Presentation: We report the case of an adrenocortical oncocytic neoplasm with malignant potential in a 21-year-old female with co-secrete testosterone and cortisol. The patient had been operated of adrenal mass. Fallowing operation, the Cushing’s syndrome and high testosterone levels resolved. Conclusion: In our knowledge this is the first case in the l?terature which co-secret cortizol and testosterone in malign oncystoma.

关键词： Oncocytoma Cortisol Testosterone

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Injuries Requiring Surgery in Folk Dancers： A Retrospective Cohort Study of 9 Years

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Journal of Sports Science 2018年第2期6卷 108-117页

作者： Neslihan Aksu Vefa Atansay Taner Aksu Safiye Koculu Sukriye Damla kara Isik karalok Department of Orthopedics and Traumatology Faculty of Medicine Istanbul Bilim University Abide i Hurriyet Cad No 164 Sisli 34381 Istanbul Turkey Department of Orthopedics and Traumatology Medical Faculty Bahcesehir University Medical Park Hospital Fevzipasa mah Dolap cad. Fatih Istanbul Turkey Department of Clinic Microbiology and Enfectious Desease Faculty of Medicine Istanbul Bilim University Abide i Hurriyet Cad No 164 Sisli 34381 Istanbul Turkey Department of Neurology University of South Florida FL 33606 USA Radiology Department Faculty of Medicine istanbul Bilim University Abide i Hurriyet Cad No 164 Sisli 34381 Istanbul Turkey

Background： In this study, we examined professional folk dancer injuries which required surgery and if there are any associated factors like age, gender, dexterity, dance style and to evaluate the return to their full capacity. Materials and Methods： Seventy five members of the Fire of Anatolia dance group （mean age： 26.8 ± 5.2; 18-38 years） performers were evaluated. The dancers suffered 14 orthopedic injuries requiring surgery （3 meniscus tears, 2 anterior cruciate ligament tears one of which is with posterolateral corner tear, 1 posterior cruciate ligament tear, 1 patellar dislocation, 1 scaphoid fracture, 1 extensor tendon cut in hand, 1 infrapatellar bursitis, 2 Hoffa’s fat pad syndromes, 2 symptomatic medial plicaes） during a nine-year period. Follow-up time was 51 ± 41.9 （29.5-92） months. Results： Following surgeries, the dancers could restart rehearsals in 12.7 ± 9 （range： 4 to 36） weeks and perform live on the stage in 16.2 ± 12.2 （range： 5 to 52） weeks on average. Conclusion： Males were 8.64 times more likely to suffer an injury requiring surgery compared to the females （p = 0.003） and twelve （85.7%） of these injuries were lower extremity injuries and were all located in the knee in Anatolian folk dancers.

关键词： Dancer injuries folk dancers knee injuries arthroscopy return to dance knee surgery.

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