88 results match your criteria: "Kayseri University[Affiliation]"

Objective: Electroencephalogram (EEG), which is frequently used in the clinical practice of neurology, has also been investigated in eating disorders and some cortical dysfunctions have been reported. Based on this, we aimed to investigate EEG changes in pregnant women with hyperemesis gravidarum (HEG).

Materials And Methods: This case-control study was conducted on 66 pregnant women who applied to the Umraniye Training and Research Hospital, Department of Obstetrics and Gynecology.

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Campylobacters, especially C. jejuni and C. coli, have become one of the leading causes of acute gastroenteritis in humans worldwide in recent years.

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A fast and simple dispersive solid-phase microextraction method (d-SPμE) was described for the determination of copper and lead in food, water, and sediments using FAAS. Firstly, nanoflower AlO@carbon spheres composite (NF AlO@CSs) was synthesized and then characterized. The obtained NF AlO@CSs was used for the d-SPμE of copper and lead in aqueous solutions.

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Is energy poverty of Eastern European countries a threat or opportunity in the European Union's fight against climate change?

Environ Sci Pollut Res Int

November 2023

Department of Aviation Management, Faculty of Aeronautics and Astronautics, Erciyes University, Kayseri, Turkey.

Energy poverty is a critical global issue that affects millions of people worldwide. The lack of access to reliable and affordable energy services has significant economic and social impacts, including limited opportunities for education, personal development, and economic growth. This paper examines the relationship between energy poverty and economic development in selected countries using the panel quantile methodology.

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Sleep apnea is defined as a breathing disorder that affects sleep. Early detection of sleep apnea helps doctors to take intervention for patients to prevent sleep apnea. Manually making this determination is a time-consuming and subjectivity problem.

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pH Tunable Patterning of Quantum Dots.

Small

January 2024

Department of Materials Science and Engineering, Nanotechnology Research Center (ERNAM), Erciyes University, Kayseri, 38039, Turkey.

Patterning of quantum dots (QDs) is essential for many, especially high-tech, applications. Here, pH tunable assembly of QDs over functional patterns prepared by electrohydrodynamic jet printing of poly(2-vinylpyridine) is presented. The selective adsorption of QDs from water dispersions is mediated by the electrostatic interaction between the ligand composed of 3-mercaptopropionic acid and patterned poly(2-vinylpyridine).

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Objectives: Our aim was to investigate the effects of endogenous chronic hypercortisolism on sleep electroencephalogram (EEG) and differences between the adrenocorticotropic hormone (ACTH)-dependent and independent Cushing Syndrome (CS) patients through a sleep spectral analysis program.

Methods: A total of 32 patients diagnosed as having endogenous CS (12 ACTH-dependent and 20 ACTH-independent) and a control group comprising 16 healthy individuals were included in the study. Polysomnographic analysis was performed.

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Article Synopsis
  • The study examines the relationship between globalization and environmental pollution in 14 emerging economies from 1991 to 2018, focusing on factors like economic growth, financial development, renewable energy, and urbanization.
  • It employs various advanced statistical techniques to analyze long-term trends and causal relationships among these variables, finding that globalization and renewable energy consumption help reduce pollution while economic growth and financial development increase it.
  • The results suggest important policy implications for reducing environmental pollution in these countries, emphasizing the need for balance between economic growth and sustainable practices.
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Objective: This study aimed to determine the effect of face-to-face and video-based education for fistula care on hemodialysis patients' self-care behaviors.

Methods: The study was conducted as a randomized controlled experimental study. Accordingly, 60 patients were included in the study for 95% strength.

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Food-Grade Physically Unclonable Functions.

ACS Appl Mater Interfaces

September 2023

ERNAM─Nanotechnology Research and Application Center, Erciyes University, Kayseri 38039, Turkey.

Counterfeit products in the pharmaceutical and food industries have posed an overwhelmingly increasing threat to the health of individuals and societies. An effective approach to prevent counterfeiting is the attachment of security labels directly on drugs and food products. This approach requires the development of security labels composed of safely digestible materials.

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Detection of small objects in natural scene images is a complicated problem due to the blur and depth found in the images. Detecting house numbers from the natural scene images in real-time is a computer vision problem. On the other hand, convolutional neural network (CNN) based deep learning methods have been widely used in object detection in recent years.

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Background: Peripheral intravenous catheterization is a painful and uncomfortable procedure and is the most commonly used invasive procedure in healthcare institutions. Compare procedure-related pain and patient satisfaction according to catheter size and insertion site in peripheral intravenous catheterization.

Methods: The study was comparative prospective randomized study.

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Along with the growth and globalization of the whole world economy since the First Industrial Revolution, the production and use of fossil fuels have led to increased CO emissions and, ultimately, significant environmental degradation. The impact of globalization, economic growth, and renewable energy sources on CO may show trends with different turning points in developing countries, and estimations may need to follow Fourier-type functions to capture the frequency domain. Therefore, the aim of this study is to examine the effects of renewable energy production, economic globalization, and economic growth on CO emissions for Turkey in the period 1971-2006 with Fourier autoregressive distribution lag (ADL) cointegration, DOLS, and Fourier-Granger causality tests.

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In-Domain Transfer Learning Strategy for Tumor Detection on Brain MRI.

Diagnostics (Basel)

June 2023

Department of Computer Engineering, Kayseri University, Kayseri 38280, Turkey.

Transfer learning has gained importance in areas where there is a labeled data shortage. However, it is still controversial as to what extent natural image datasets as pre-training sources contribute scientifically to success in different fields, such as medical imaging. In this study, the effect of transfer learning for medical object detection was quantitatively compared using natural and medical image datasets.

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Developing deep learning methods for classification of teeth in dental panoramic radiography.

Oral Surg Oral Med Oral Pathol Oral Radiol

July 2024

Faculty of Dentistry, Department of Oral and Maxillofacial Radiology, Erciyes University, Kayseri, Turkey. Electronic address:

Objectives: We aimed to develop an artificial intelligence-based clinical dental decision-support system using deep-learning methods to reduce diagnostic interpretation error and time and increase the effectiveness of dental treatment and classification.

Study Design: We compared the performance of 2 deep-learning methods, You Only Look Once V4 (YOLO-V4) and Faster Regions with the Convolutional Neural Networks (R-CNN), for tooth classification in dental panoramic radiography for tooth classification in dental panoramic radiography to determine which is more successful in terms of accuracy, time, and detection ability. Using a method based on deep-learning models trained on a semantic segmentation task, we analyzed 1200 panoramic radiographs selected retrospectively.

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Objectives: This study was conducted to examine the experiences and perceived challenges of nurses who are also mothers having a child during the coronavirus disease (COVID-19) pandemic.

Methods: A descriptive phenomenological design. The study was conducted with 18 nurse mothers working at COVID-19 clinics in Turkey.

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Aim: This study was conducted to evaluate the content, reliability and quality of YouTube videos about phlebotomy.

Method: A retrospective, register-based study was conducted exclusively with videos publicly available on YouTube in June 2022. Ninety videos have been evaluated in terms of content, reliability and quality.

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This study reports the synthesis and characterization of two new mono- and di-substituted phthalonitriles namely 4-((9-carbazol-3-yl)oxy)-5-chlorophthalonitrile and 4,5-bis((9-carbazol-3-yl)oxy)phthalonitrile, respectively. Cyclotetramerization of the new phthalonitriles in the presence of zinc(II) acetate resulted in related zinc(II) phthalocyanines. To study the effect of the position and number of substituents on the biological properties of the phthalocyanines, peripherally or non-peripherally tetra-substituted zinc(II) phthalocyanines bearing (9-carbazol-3-yl)oxy groups, as well as axially di-substituted silicon phthalocyanines containing the same groups, were prepared.

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In this study, three new axially disubstituted silicon phthalocyanines (SiPc1-3) and their quaternized phthalocyanine derivatives (QSiPc1-3) were prepared and characterized. The biological properties (antioxidant, antimicrobial, antibiofilm, and microbial cell viability activities) of the water-soluble silicon phthalocyanines were examined, as well. A 1 % DMSO diluted with pure water was used as a solvent in biological activity studies.

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The determination of adherence to fluid control and symptoms of patients undergoing hemodialysis.

Afr Health Sci

September 2022

Çukurova Universitesi, Department of Internal Diseases Nursing, Faculty of Health Sciences.

Background And Aims: The aim of this study was to determine the adherence of hemodialysis (HD) patients with fluid control and the symptoms they experienced.

Method: The data of the study were collected between October 2015 and January 2016 and totally 596 patients undergoing hemodialysis were included in the study. The data of the study were collected by using Patient Information Form, Fluid Control Scale on Hemodialysis Patients (FCSHP), and Dialysis Symptom Index (DSI).

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Environmental pollution and energy storage are among the most pivotal challenges of today's world. The development of multifunctional materials is required to address these challenges. Our study presents the rational design and synthesis of a hybrid material (ZIF-8@BiPO) with dual functionality: an outstanding supercapacitor electrode and an excellent photocatalyst.

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The present study is focused on the antimicrobial, antioxidant, cytotoxic, and DNA protective effects of methanol extract obtained from R. digitellata, R. fastigiata, R.

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In the data-driven world, textile is a valuable resource for improving the quality of life through continuous monitoring of daily activities and physiological signals of humans. Triboelectric nanogenerators (TENG) are an attractive option for self-powered sensor development by coupling energy harvesting and sensing ability. In this study, to the best of the knowledge, scalable fabrication of Ti C T MXene-embedded polyvinylidene fluoride (PVDF) nanocomposite fiber using a thermal drawing process is presented for the first time.

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This survey aims to identify commonly used methods, datasets, future trends, knowledge gaps, constraints, and limitations in the field to provide an overview of current solutions used in medical image analysis in parallel with the rapid developments in transfer learning (TL). Unlike previous studies, this survey grouped the last five years of current studies for the period between January 2017 and February 2021 according to different anatomical regions and detailed the modality, medical task, TL method, source data, target data, and public or private datasets used in medical imaging. Also, it provides readers with detailed information on technical challenges, opportunities, and future research trends.

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In this study, ground glass powder and crushed waste glass were used to replace coarse and fine aggregates. Within the scope of the study, fine aggregate (FA) and coarse aggregate (CA) were changed separately with proportions of 10%, 20%, 40%, and 50%. According to the mechanical test, including compression, splitting tensile, and flexural tests, the waste glass powder creates a better pozzolanic effect and increases the strength, while the glass particles tend to decrease the strength when they are swapped with aggregates.

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