Güncel Gönderiler: DSpace at YYU
Toplam kayıt 1778, listelenen: 1221-1240
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Pilot Assisted MIMO OFDM-IM Design for Doubly Selective Underwater Acoustic Systems
(Institute of Electrical and Electronics Engineers Inc., 2020)This paper presents a MIMO-based orthogonal frequency division multiplexing-index modulation (OFDM-IM) communication system design for underwater acoustic systems. The proposed multiple-input multiple-output (MIMO)-OFDM-IM ... -
Sparse Channel Estimation Algorithm for Doubly Selective MIMO OFDM-Based UWAC Systems with Double Focusing
(Institute of Electrical and Electronics Engineers Inc., 2020)In this paper, a channel estimation algorithm is proposed for sparse underwater acoustic channels. The channel estimator utilizes the path-based channel model that can be characterized by a path delay, a Doppler scaling ... -
Sparse Channel Estimation for MIMO Index Modulated OFDM Based Underwater Acoustic Communications
(Institute of Electrical and Electronics Engineers Inc., 2020)This paper presents a novel channel estimation algorithm for pilot aided MIMO-OFDM-IM underwater acoustic communications. The receiver employs the least squares technique for the initial channel coefficients estimation. ... -
From wiping out of the meaning to over-interpretation: The translator as covert co-author in the rewriting of Istanbul [Anlamin yok edilmesinden asiri yoruma: Istanbul'un yeniden yaziminda gizli ortak yazar olarak cevirmen]
(Selcuk University, 2021)In The Light of Day, Eric Ambler creates a dysphoric Istanbul through the opposition of East and West. However, its Turkish translation Gun Isigi by Adnan Semih Yazicioglu tends to create a very different narrative by ... -
Association of inflammatory markers with mortality in patients hospitalized with non-massive pulmonary embolism
(AVES, 2021)OBJECTIVE: Pulmonary embolism (PE) is a serious pathology with high rates of morbidity and mortality. Studies regarding the efficacy of new inflammatory markers as a predictor of mortality in PE have thus far been limited. ... -
Outcomes of renal transplantation in end-stage renal disease patients with nonischemic very low ejection fraction heart failure
(Turkish Society of Nephrology, 2021)Objective: Transplantation in end-stage renal disease (ESRD) patients with very low left ventricular ejection fraction (LVEF) heart failure (HF) is a challenging issue, owing to the potential risk of morbidity and mortality, ... -
Mortality analysis of COVID-19 infection in chronic kidney disease, haemodialysis and renal transplant patients compared with patients without kidney disease: A nationwide analysis from Turkey
(Oxford University Press, 2021)Background. Chronic kidney disease (CKD) and immunosuppression, such as in renal transplantation (RT), stand as one of the established potential risk factors for severe coronavirus disease 2019 (COVID-19). Case morbidity ... -
Cell-Free Lactobacillus sp Supernatants Modulate Staphylococcus aureus Growth, Adhesion and Invasion to Human Osteoblast (HOB) Cells
(Springer, 2021)The increase of antibiotic resistance has become a problem. Probiotic bacteria play an important role in preventive/supportive medicine. Therefore, we examined the inhibitory effects of four different Lactobacillus species’ ... -
Endoscopic resection of a localized tenosynovial giant cell tumor causing posterior ankle impingement in a 15-year-old athlete: A case report
(Turkish Joint Diseases Foundation, 2021)Tenosynovial giant cell tumor (TGCT) is a systematically benign but locally aggressive lesion arising from the synovium, tendon sheath or joint bursae. Even in athletes, soft tissue tumors may be the underlying reason or ... -
Synthesis, characterization, and determination of photophysicochemical properties of peripheral and nonperipheral tetra-7-oxy-3,4-dimethylcoumarin substituted zinc, indium phthalocyanines
(John Wiley and Sons Ltd, 2021)The photochemical and photophysical properties of peripheral and nonperipheral zinc and indium phthalocyanines containing 7-oxy-3,4-dimethylcoumarin synthesized were investigated in this study. 7-Hydroxy-3,4-dimethylcoumarin ... -
Comparison of different pulmonary valve reconstruction techniques during transannular repair of tetralogy of fallot
(Blackwell Publishing Inc., 2021)Background: Transannular patch, which results in pulmonary insufficiency (PI), is usually required during repair of tetralogy of fallot (TOF). In this study, we compared three types of pulmonary valve reconstruction ... -
Effects of sense and functionality changes in the hands on activity and participation in patients with juvenile scleroderma
(Taylor and Francis Ltd., 2021)Objectives: The purpose of the study was to examine the effects of sense and functionality changes in the hands on activity and participation in patients with juvenile scleroderma (JS). Methods: Sixteen patients with ... -
Pessary use in patients diagnosed with short cervix and cervical insufficiency
(Taylor and Francis Ltd., 2021)Objective: The aim was to evaluate the effectiveness of Arabin pessary use in patients with cervical insufficiency or short cervix before the 24th week of gestation and the impact of cervical examination findings prior to ... -
In vitro physiological effects of betahistine on cell lines of various origins [Betahistinin farklı orijinlere sahip hücreler üzerindeki in vitro fizyolojik etkileri]
(Turkish Pharmacists Association, 2021)Objectives: Betahistine is a histamine analog commonly prescribed for symptomatic treatment of vertiginous symptoms. In vitro studies have shown that betahistine was not toxic at the prescribed doses in a nasal epithelial ... -
In vitro physiological effects of origanum onites L. (lamiaceae) essential oil treatment on human origin cell lines
(Turkiye Klinikleri, 2021)Origanum onites L. belongs to the Lamiaceae family which is commonly used for symptomatic treatment of the diseases of the gastrointestinal, endocrine, and respiratory systems in Turkish ethnobotanical studies and public. ... -
The role of plasma exchange in acute liver failure of autoimmune etiology
(Turkish National Pediatric Society, 2021)Background. Autoimmune hepatitis (AIH) is characterized by increased immunoglobulin G (IgG) levels, the presence of autoantibodies, and various degrees of lymphocyte predominant inflammation and fibrosis histologically. ... -
A study of the shift in fatal construction work-related accidents during 2012–2019 in Turkey
(Taylor and Francis Ltd., 2021)Objectives. The construction sector is one of the sectors with the highest number of occupational accidents and diseases in the world in terms of working conditions. According to the ‘Communiqué on Occupational Hazard ... -
Evaluation of mobbing perception levels of health employees
(SAGE Publications Ltd, 2021)The objective of this study was to evaluate the mobbing perception levels of health workers, who were mobbed and to determine whether the socio-demographic characteristics of the employees made a significant difference in ... -
Outcomes in coronary no-reflow phenomenon patients and the relationship between kidney injury molecule-1 and coronary no-reflow phenomenon
(Arquivos Brasileiros de Cardiologia, 2021)Background: Coronary no-reflow phenomenon (CNP) is associated with an increased risk of major cardiovascular adverse events (MACE). Objective: This study aimed to evaluate the relationship between serum Kidney Injury ... -
Chemical composition and biological activities of essential oils of foeniculum vulgare mill. And daucus carota l. growing wild in turkey
(Marmara University, 2021)The chemical composition of essential oils of aerial parts of Daucus carota (DEO) and Foeniculum vulgare (FEO) was specified by GC/MS. Antidiabetic, anti-inflammatory, antioxidant, and antibacterial activities of oils were ...
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