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Bulunan: 76 Adet 0.002 sn
Yayın Dili : eng ✕Yayın Türü : Makale ✕
Koleksiyon [19]
İlgili Araştırmacılar [20]
BM Sürdürülebilir Kalkınma [4]
Ambargo Durumu [1]
Tam Metin [1]
Yayın Türü [1]
Yazar/lar [20]
Atıf Dizini [8]
Konu Başlıkları [20]
Yayıncı [20]
Tez Danışmanı [2]
Dergi Adı [5]
Yayın Tarihi [11]
Dergi Sayısı [3]
Tez Türü [1]
Yayın Dili [1]
dc.description.provenance [15]
Erişime Açık

A Novel EOG-Based Wireless Rapid Communication Device For People With Motor Neuron Diseases

UŞAKLI, Ali Bülent | GÜRKAN, Serkan | GÜRKAN, Guray | KAYA, Alper

In this study, a new electrooculography (EOG) based system that provides efficient communication for people suffered from motor neuron diseases is presented. The system consists of two distinct devices. The first device operates as a main unit that is activated by the subject’s eye movements. This unit is capable of transmitting 10 different command/state messages. These messages enable subject to choose his/her situation such as “I’m fine”, “I feel bad”, “I’m hungry” and “I’m thirsty”. Commands such as “Come”, “Go”. The number of messages can be increased. The main unit acquires the EOG signa ...Daha fazlası

Makale 2018 Taylor and Francis Ltd 7 Görüntülenme
Erişime Açık

Change Detection in Multispectral Landsat Images Using Multi-Objective Evolutionary Algorithms

YAVARIABDI, Amir

In this letter, we propose a novel method for unsupervised change detection in multitemporal multispectral Landsat images using multiobjective evolutionary algorithm (MOEA). The proposed method minimizes two different objective functions using MOEA to provide tradeoff between each other. The objective functions are used for evaluating changed and unchanged regions of the difference image separately. The difference image is obtained by using the structural similarity index measure method, which provides combination of the comparisons of luminance, contrast, and structure between two images. By ...Daha fazlası

Makale 2017 KUSETOĞULLARI, Hüseyin IEEE Geoscience and Remote Sensing Letters 3 Görüntülenme
Erişime Açık

Evolutionary Multiobjective Multiple Description Wavelet Based Image Coding in the Presence of Mixed Noise in Images

YAVARIABDI, Amir | KUSETOĞULLARI, Hüseyin

In this paper, a novel method for generation of multiple description (MD) wavelet based image coding is proposed by using Multi-Objective Evolutionary Algorithms (MOEAs). Complexity of the multimedia transmission problem has been increased for MD coders if an input image is affected by any type of noise. In this case, it is necessary to solve two different problems which are designing the optimal side quantizers and estimating optimal parameters of the denoising filter. Existing MD coding (MDC) generation methods are capable of solving only one problem which is to design side quantizers from t ...Daha fazlası

Makale 2018 Applied Soft Computing 4 Görüntülenme
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ARDIS: a Swedish historical handwritten digit dataset

CHEDDAD, Abbas | GRAHN, Håkan | HALL, Johan | KUSETOĞULLARI, Hüseyin | YAVARIABDI, Amir

This paper introduces a new image-based handwritten historical digit dataset named Arkiv Digital Sweden (ARDIS). The images in ARDIS dataset are extracted from 15,000 Swedish church records which were written by different priests with various handwriting styles in the nineteenth and twentieth centuries. The constructed dataset consists of three single-digit datasets and one-digit string dataset. The digit string dataset includes 10,000 samples in red–green–blue color space, whereas the other datasets contain 7600 single-digit images in different color spaces. An extensive analysis of machine l ...Daha fazlası

Makale 2019 Neural Computing and Applications 11 Görüntülenme
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A design of experiment approach of cattle slaughterhouse wastewater treatment by electrocoagulation method

ERYÜRÜK, Kağan | ERYÜRÜK, Şule | TEZCAN ÜN, Ümran | BAKIR ÖĞÜTVEREN, Ülker

The aim of this work was to formulate an empirical model using the data of the electrochemical treatment of cattle slaughterhouse wastewater. The empirical model was developed using response surface methodology with optimal design considering an irregular process space. As operational factors, current density, influent pH, flow rate, supporting electrolyte (NaCl or Na2SO4) concentrations, and H2O2 concentrations were examined. Under these circumstances, the aim was to represent the optimal region shown generally as a surface by obtaining the lowest possible value of chemical oxygen demand (COD ...Daha fazlası

Makale 2021 DESANILATION AND WATER TREATMENT 7 Görüntülenme
Erişime Açık

Determination of Antioxidant and Anticancer Activities of C. Sativa Leaf Extracts on MCF7 Human Breast Cancer Cell Line

BEYAZYÜZ, Fadime | GÜLBAHÇE MUTLU, Elif | ALPA, Şerife | ERBAYRAM, Fatma Zehra | TÜRKOĞLU, Fatma Nur | KULAÇ, Şemsettin

Aim: In this study, it was aimed to determine the total phenolic content, flavonoid content, and antioxidant activity of Castanea sativa Mill. (chestnut) leaf extract and their anti-proliferative effect on MCF 7 cell line. Materials and Methods: It determined antioxidant capacities by using DPPH assay, total phenolic content by using Folin-Ciocaltaeu method and Total flavonoid content by aluminum chloride colorimetric method in the ethanolic extracts of Chesnut leaf. In addition, the anti-proliferative effect of chestnut leaf extract was determined by XTT method in MCF7 breast cell line. The l ...Daha fazlası

Makale 2023 Medical Records5 0 Görüntülenme
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The Effects of Oil Price Shocks on Clean Energy and Oil and Gas Stock Returns

UÇKUN ÖZKAN, Ayşegül

This study empirically examines how fluctuations in oil prices affect the stock returns of clean energy and oil and gas companies between 2001:01 and 2022:06. Our results show that a negative oil supply shock affects the stock returns of clean energy companies positively. In contrast, an oil-specific demand shock negatively affects them. The findings also reveal that an increase in oil prices owing to an oil-specific demand shock tends not to improve the stock returns of oil and gas companies. Consequently, the results indicate that oil and clean energy are not alternatives.

Makale 2023 Sosyoekonomi31 ( 56 ) 0 Görüntülenme
Erişime Açık

The impact of investor attention on green bond returns: How do market uncertainties and investment performances of clean energy and oil and gas markets affect the connectedness between investor attention and green bond?

UÇKUN ÖZKAN, Ayşegül

This paper empirically investigates the spillover between investor attention and green bond returns by utilizing the connectedness approach. We will examine the impact of uncertainty in the stock, bond, and energy markets, as well as the success of clean energy, oil, and gas investments, on the relationship between green bonds and investor attention. We find that there are positive but small spillovers between investor attention and green bond returns. Besides, the connectedness between investor attention and green bond market performance is stronger in the short run than in the long run. Furt ...Daha fazlası

Makale 2024 Asian Journal of Economic Modelling 0 Görüntülenme
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Investigation of the effect of belinostat on MCF-7 breast cancer stem cells via the Wnt, Notch, and Hedgehog signaling pathway.

TUNCER, Zeliha | KURAR, Ercan | DURAN, Tugçe

Objectives: To evaluate belinostat’s (PXD101) activity on MCF-7 breast cancer stem cells (CSCs) via Wnt, Notch, and Hedgehog. Methods: This research study was carried out at the Department of Medical Biology, Necmettin Erbakan University, Konya, Turkey, from June 2017 to July 2019. The effect of PXD101 on MCF-7 cell viability was determined by cell proliferation kit (XTT). Following belinostat treatment, CD44+/ CD24- MCF-7 CSCs were isolated by FACS. Ribonucleic acid isolation and copy-deoxyribonucleic acid synthesis were carried out using HEK-293 cells, MCF-7 cells, and MCF-7 CSCs. Expression ...Daha fazlası

Makale 2024 Saudi Medical Journal45 ( 2 ) 0 Görüntülenme
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Plasma Kallistatin Levels in Patients with COVID-19

YÜCEL, Kamile | YILDIZ, Salih | GÜRBÜZ, Ali Fuat

Purpose: The aim of this study was to evaluate kallistatin levels in patients diagnosed with COVID-19 and compare them with healthy controls. Materials and Methods: A total of 40 patients diagnosed with COVID-19, and 45 healthy controls were included in the study. The patient group was divided into 2 groups: patients treated in the service (n:20) and patients treated in the intensive care unit (n:20). Kallistatin levels were measured using the ELISA method. Results: There was a significant difference in kallistatin levels between the patient group (n:40) and the control group (n:45). There was ...Daha fazlası

Makale 2023 Cukurova Medical Journal 0 Görüntülenme
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Subtype distribution and molecular characterization of Blastocystis from hemodialysis patients in Turkey.

GÜLHAN, Barış | AYDIN TERZİOĞLU, Merve | DEMİRKAZIK, Mehtap | KOLTAŞ, İsmail Soner | ÇIKMAN, Aytekin | TÜRKMEN, Kültigin | DURAN, Tuğçe

Introduction: The aim of this study was to determine the Blastocystis prevalence and subtypes in hemodialysis patients in Turkey. Methodology: Eighty-four patients diagnosed with end-stage renal failure who were undergoing hemodialysis and 20 healthy volunteers were enrolled. Blastocystis presence was investigated by native-Lugol, trichrome staining, PCR using STS primers, and DNA sequencing analysis. Results: Among the stool samples from the hemodialysis patients, 9.52% (8/84) were found to be Blastocystis-positive with the native-Lugol and trichrome staining. Seven of the eight Blastocystis ...Daha fazlası

Makale 2020 J Infect Dev Ctries 0 Görüntülenme
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Outcome of patients with severe COVID-19 pneumonia treated with high-dose corticosteroid pulse therapy A retrospective study

KARAKOÇ, Hanife Nur | AKSOY, Aysun | AYDIN TERZİOĞLU, Merve | ÖZCAN, Safiye Nur | ZENGİN, Gülçin | AKŞİT YAŞAR, Hacer

Objective: To assess the effectiveness of high-dose corticosteroid pulse therapy and evaluate possible factors associated with 28-day mortality in hospitalised patients with severe COVID-19 pneumonia. Methods: We conducted a single-centre retrospective cohort study on hospitalised patients with clinical, epidemiological, and/or radiologically confirmed and suspected COVID-19 at Bitlis Tatvan State Hospital in Turkey between December 1, 2020 and June 1, 2021. All data of the study participants were recorded, and all patients received intravenous high-dose corticosteroid pulse therapy. The Ordin ...Daha fazlası

Makale 2022 Asian Pacific Journal of Tropical Medicine 0 Görüntülenme
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