4,654 results match your criteria: "Karadeniz technical University[Affiliation]"

Background: Acromiohumeral interval (AHI) reversibility is used to evaluate whether superior humeral migration is fixed or flexible in patients with massive rotator cuff tears (MRCTs). AHI reversibility is measured as the difference in the AHI observed between standard and stress radiography. However, factors affecting AHI reversibility have not been studied in the existing literature.

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Exploring the Correlation of Physiological Stress Signals with Student Exam Performance: A Preliminary Study.

Appl Psychophysiol Biofeedback

January 2025

Department of Biostatistics and Medical Informatics, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey.

Stress responses in real-world settings are less studied compared to controlled laboratory environments, limiting our understanding of their impact on cognitive performance. This study investigates the relationship between physiological stress signals and academic performance using an open-access dataset of 10 students assessed across three exam sessions (Midterm 1, Midterm 2, and Final Exam). Physiological measures, including electrodermal activity (EDA), heart rate (HR), and skin surface temperature (TEMP), along with exam grades, were analyzed using traditional hypothesis testing, bootstrap method, correlation analysis, and regression tree modeling.

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The COVID-19 pandemic began in March 2020 and has affected many countries and infected over a million people. It has had a serious impact on people's physical and mental health, daily life and the global economy. Today, many drugs show limited efficacy in the treatment of COVID-19 and studies to develop effective drugs continue.

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Background: In the 21st century, disasters (particularly earthquakes, which remain the leading cause of death) continue to be among the foremost issues requiring global emergency response. While the impact of advancing technologies on the environmental and human damage caused by earthquakes is still a subject of debate, search and rescue (SAR) teams and emergency departments (ED), specifically emergency physicians (EPs), play a crucial role in the most acute management of the effects of these earthquakes on human life. This study aims to examine the injury dynamics of two catastrophic earthquakes that occurred in Turkey 24 years apart from the perspective of EPs, utilizing archival records from the SAR teams in which EPs served.

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Aim: This study aimed to determine the effect of nurses' work environment, individual and work schedule features on the rationing of nursing care.

Introduction: Rationing of nursing care is a concern in healthcare settings worldwide, as it is associated with negative outcomes for both patients and nursing staff.

Background: Little is known about the precursors of rationing of nursing care in developing countries.

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Purpose: Study aimed to compare incidence of urinary tract infection (UTI), type of bacteria grown, development of antibiotic resistance over 2 years in children whose caregivers underwent training based on the Roy Adaptation Model with an android phone application for patients clean intermittent catheterization (RAMACIC) versus those whose caregivers received routine training in hospital.

Method: This study was conducted as a descriptive, prospective study with 40 patients and caregivers between October 2021 and 2023 as a continuation of a previously conducted randomized controlled experimental study by the researchers. Data were collected the "Participant Form," and "Urine Test Form" analyzed with the SPSS 22 package.

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The effect of fatigue on seafarers' ship-boarding process: jet lag disorder.

Int J Occup Saf Ergon

January 2025

Maritime Transportation and Management Engineering Department, Karadeniz Technical University, Türkiye.

In parallel with the rising world population, consumption is increasing. Seafarers work intensively for the continuity of consumption. Vessel crew work under contract for specific periods.

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Background: The effect of congenital cardiac malformation on fetal cerebral circulation has not been well known. This study aimed to compare the cerebral blood circulation of fetuses with congenital heart disease (CHD) with healthy fetuses.

Methods: This prospective cohort study included 37 pregnant women who presented to the gynecology and obstetrics department of department of Farabi Hospital, Faculty of Medicine, Karadeniz Technical University for anomaly screening in the second trimester.

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Objectives: D.Don, an edible plant, is widely used in folk medicine. This study aimed to investigate the antioxidant and lipase inhibitory activities of the extracts and isolated compounds from the underground parts of (TOU).

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Electric heaters are widely used owing to their portability, fast heating, single-focus heating, and energy efficiency advantages. Manufacturers provide customers with information on the power consumption and energy efficiency classes of heaters but do not provide any information on heating patterns. Knowing the heating pattern enables users to select the correct heater, which has a significant effect on comfort, health, energy efficiency, industrial process performance, plant growth, and climate change.

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Advanced Brain Tumor Classification in MR Images Using Transfer Learning and Pre-Trained Deep CNN Models.

Cancers (Basel)

January 2025

Department of Computer Science, Faculty of Information Technology and Electrical Engineering, Norwegian University of Science and Technology, 2815 Gjøvik, Norway.

Background/objectives: Brain tumor classification is a crucial task in medical diagnostics, as early and accurate detection can significantly improve patient outcomes. This study investigates the effectiveness of pre-trained deep learning models in classifying brain MRI images into four categories: Glioma, Meningioma, Pituitary, and No Tumor, aiming to enhance the diagnostic process through automation.

Methods: A publicly available Brain Tumor MRI dataset containing 7023 images was used in this research.

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This study addresses the thermal management challenge in battery systems by enhancing phase change material composites with Ni-P and Ni-P-Cu coatings on phase change material/expanded graphite structures. Traditional phase change materials are limited by low thermal conductivity and mechanical stability, which restricts their effectiveness in high-demand applications. Unlike previous studies, this work integrates Ni-P and Ni-P-Cu coatings to significantly improve both the thermal conductivity and mechanical strength of phase change material/expanded graphite composites, filling a crucial gap in battery thermal management solutions.

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The introduction of 3D printing technology has broadened manufacturing possibilities, allowing the production of complex cellular geometries, including auxetic and curved plane structures, beyond the standard honeycomb patterns in sandwich composite materials. In this study, the effects of cell design parameters, such as cell geometry (honeycomb and auxetic) and cell size (cell thickness and width), are examined on acrylonitrile butadiene styrene (ABS) core materials produced using fusion deposition modeling (FDM). They are produced as a result of the epoxy bonding of carbon epoxy prepreg composite materials to the surfaces of core materials.

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Background: Psoriasis is a chronic inflammatory skin disease with a genetic predisposition and autoimmune component, often treated with immunomodulators such as biologic therapies.

Objectives: In this study, the authors evaluated the effectiveness and safety of two of these over a 52-week treatment period.

Methods: A double-center retrospective cohort study was conducted, enrolling patients with moderate to severe psoriasis who received either guselkumab or risankizumab at dermatology clinics for a minimum of 52-weeks.

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This study was conducted to test the reliability and validity of the Pathogenic Belief Scale (PBS) on adult individuals. Participants consisted of 299 adults, including 189 (63.2%) females and 110 (36.

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Objective: The agitation that can occur in patients undergoing vitreoretinal surgery on awakening from general anesthesia is a serious post-operative problem. In our study, we aimed to compare the effects of different anesthesia methods on emergence agitation in patients undergoing vitreoretinal surgery.

Method: Patients undergoing vitreoretinal surgery were divided into two groups: Total intravenous anesthesia (Group T) and inhalation anesthesia (Group D) according to the maintenance of anesthesia applied by consulting the records.

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Objectives: Cardiopulmonary resuscitation (CPR), which is used in cases of life-threatening cardiopulmonary arrest, is a physically exhausting procedure. Adding to that, sometimes, even before performing CPR, interventions to rescue the injured person from a challenging environment have caused significant fatigue. In this study, taking a novel research approach, we generated a scenario of fatigue during a rescue from earthquake debris and aimed to measure the effect of that fatigue on the quality of CPR performed by paramedics.

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Aim: This study aimed to assess the levels of maternal perception of control and support during birth and the factors influencing them in the postpartum period.

Design: A cross-sectional design was employed. The STROBE checklist was used.

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In this study, we aimed to evaluate the potential effects of white tea (WT) in the atherosclerosis process characterized by oxidative stress, inflammation, and dyslipidemia. In our study, apolipoprotein E knockout (ApoE) mice (RRID: IMSR_JAX:002052) and C57BL/6J mice (RRID: IMSR_JAX:000664) were used. In the atherosclerosis model induced by an atherogenic diet (AD), WT was administered via oral gavage at two different concentrations.

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Exploring Metal-Metal Composites: A Study on AA5083 Matrix-Cr Particles Reinforced Composites.

Materials (Basel)

December 2024

Faculty of Engineering, Metallurgical and Materials Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey.

The objective of this study is to develop chromium-reinforced metal-metal composites utilizing an AA5083 aluminum alloy matrix through powder metallurgy while also examining their properties. Samples were produced by incorporating varying quantities of chromium (5%, 10%, and 15% by weight) into the AA5083 matrix. In order to ensure a uniform distribution of chromium particles, the powders were blended in a ball mill and subsequently hot-pressed at 500 °C under 500 MPa for a period of two hours in an argon atmosphere.

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The Anatolian honey bee (Apis mellifera anatoliaca) and Bombus terrestris are important species in Türkiye. In this context, protecting the health of these honey bees is particularly important. Lactic acid bacteria (LAB) and acetic acid bacteria (AAB) are very important for the health of bees.

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Article Synopsis
  • This study aimed to compare the effects of two orthodontic appliances, the Twin block and Herbst, on the structure of the mandible using fractal dimension analysis (FDA) of panoramic radiographs in patients with skeletal Class II malocclusion.
  • Fifty subjects treated with each appliance and a control group were analyzed, focusing on specific regions in the mandible, with significant changes in the condylar region and corpus observed across both treatment groups.
  • Results indicated that both appliances caused remodeling of the mandibular trabecular structure, with the Twin block showing greater variances in the condyle compared to the Herbst appliance, thus rejecting the null hypothesis of no effect.
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Objective: This study aimed to evaluate the skeletal, dental, and soft tissue effects of the nickel titanium memory Leaf Expander in a growing sample of patients with unilateral posterior crossbite compared with a control group using digital models and lateral cephalometric radiographs.

Methods: The research included a total of 24 patients, 12 of whom were treated and 12 untreated. The Leaf Expander group consisted of 4 males and 8 females (mean age= 8.

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Article Synopsis
  • The study investigates the inhibitory effects of R. cathartica L. plant extract on the Quorum Sensing (QS) system in various bacteria using molecular modeling techniques.
  • The methanol extract demonstrated antimicrobial activity, especially against Gram-positive and Gram-negative bacteria, with noticeable effects on P. aeruginosa.
  • Phytochemical analysis identified kaempferol as the primary component, which was shown to bind to QS system receptors and potentially offer a new eco-friendly antibacterial treatment.
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The Role of Cardiac Resynchronization Therapy in Heart Failure: A Narrative Review.

Health Sci Rep

January 2025

Department of Research and Education, Oli Health Magazine Organization Research and Education Kigali Rwanda.

Introduction: Structural and functional cardiac defects leading to inadequate tissue oxygenation is known as Heart failure (HF) which is characterized by extensive morbidity and mortality. Pathophysiology of HF involves systolic and diastolic dysfunction, neurohormonal dysregulation, and imbalance in inflammatory mediators which complicates treatment further. Cardiac resynchronization therapy (CRT) is an approach used for restoring ventricular synchrony and enhancing mechanical efficiency.

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