10,939 results match your criteria: "Yeungnam University.[Affiliation]"

Novel transfer learning based bone fracture detection using radiographic images.

BMC Med Imaging

January 2025

Department of Information and Communication Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.

A bone fracture is a medical condition characterized by a partial or complete break in the continuity of the bone. Fractures are primarily caused by injuries and accidents, affecting millions of people worldwide. The healing process for a fracture can take anywhere from one month to one year, leading to significant economic and psychological challenges for patients.

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Recent progress in biopolymer-based electrospun nanofibers and their potential biomedical applications: A review.

Int J Biol Macromol

January 2025

School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea. Electronic address:

Tissue engineering offers an alternative approach to developing biological substitutes that restore, maintain, or enhance tissue functionality by integrating principles from medicine, biology, and engineering. In this context, biopolymer-based electrospun nanofibers have emerged as attractive platforms due to their superior physicochemical properties, including excellent biocompatibility, non-toxicity, and desirable biodegradability, compared to synthetic polymers. Considerable efforts have been dedicated to developing suitable substitutes for various biomedical applications, with electrospinning receiving considerable attention as a versatile technique for fabricating nanofibrous platforms.

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Basic Science and Pathogenesis.

Alzheimers Dement

December 2024

GloNeuro Academy, Noida, Uttar Pradesh, India.

Background: Obesity is caused by the buildup of excess body fat, which upsets homeostasis. Genetic, epigenetic, and behavioural variables all have a role in the pathophysiology of obesity. In turn, obesity throws off the sleep cycle, leading to sleep problems.

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Aims: We aimed to examine the impact of gout on cardiovascular disease (CVD) and mortality risk in patients with type 2 diabetes and explore whether chronic kidney disease (CKD) modifies this association.

Materials And Methods: Using the Korean National Health Insurance Service database, 757 378 individuals with type 2 diabetes were classified into the CKDGout, CKDGout, CKDGout, and CKDGout groups. Cox proportional hazard models were used to assess the risk of myocardial infarction (MI), ischemic stroke, and mortality, after adjusting for cardiometabolic factors.

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The present investigation assessed the viability of utilizing a powdered clam shell in continuous adsorption to eliminate nickel ions from simulated wastewater. The breakthrough curves (BTC) were analyzed by altering the Q (inlet flow rate) in a glass column (ID 5 cm, H 35 cm) with a multi-port and filled with the powdered clamshell adsorbent (PCSA). The PCSA's nickel adsorption efficiency was maximum (87.

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Steganography is used to hide sensitive types of data including images, audio, text, and videos in an invisible way so that no one can detect it. Image-based steganography is a technique that uses images as a cover media for hiding and transmitting sensitive information over the internet. However, image-based steganography is a challenging task due to transparency, security, computational efficiency, tamper protection, payload, etc.

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Eliminating hazardous antibiotics from aquatic environments has become a major concern in recent years. Tetracycline (TC) compounds pose a challenge for the selective degradation of harmful chemical groups. In this study, we successfully designed carbon vacancies in a gCN@WC (GW) heterostructure for the effective removal of TC pollutants under visible light.

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Article Synopsis
  • Deep learning struggles with detecting and diagnosing medical image anomalies due to data imbalance, variability, and complexity, particularly in skin diseases that show significant differences in appearance and texture.
  • A new hybrid architecture combining wavelet decomposition with EfficientNet models has been developed to address these challenges, utilizing advanced techniques for data augmentation, loss functions, and optimization.
  • The proposed model demonstrated impressive accuracy rates of 94.7% and 92.2% when tested on the HAM10000 and ISIC2017 datasets, respectively.
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Banana peels-derived shape-regulated nanocellulose for effective adsorption of Nile blue A dye.

Int J Biol Macromol

December 2024

School of Chemical Engineering, Yeungnam University, 280-Daehak-ro, Gyeongsan 38541, Republic of Korea. Electronic address:

Industrial wastes, including dyes and other chemicals, are significant sources of water pollution. The adsorption process is often explored in water purification. However, developing low-cost, sustainable adsorbents with good dye removal capacity remains challenging.

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Rhodium(III) catalysis has been used for C-H activation of -nitrosoanilines with substituted allyl alcohols. This method provides an efficient synthesis of the functional -nitroso β-aryl aldehydes and ketones with low catalyst loading, high functional group tolerance, and superior reactivity of allyl alcohols toward -nitrosoanilines. We demonstrated that reaction also proceeds through the one-pot synthesis of -nitrosoaniline, followed by subsequent, C-H activation.

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Benign prostatic hyperplasia (BPH) is a distressing health problem that can cause serious complications in aging men. Androgens are implicated in the causation of BPH. Portulaca oleracea (PO) is a natural product with diverse pharmacological effects.

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Natural honey is enriched with essential and beneficial nutrients. This study aimed to investigate the melliferous flora microscopic techniques and assess the biochemical properties of honey. Flavonoid and phenolic contents in honey samples were analyzed via colorimetric and Folin-Ciocalteu methods and the alpha-amylase, reducing power, and minerals using Pull's and spectroscopy methods.

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Aims: This study compared echocardiography (echo) and cardiac computed tomography (CT) in measuring the Wilkins score and evaluated the potential added benefit of CT in predicting immediate percutaneous mitral valvuloplasty (PMV) outcomes in rheumatic mitral stenosis (MS) patients deemed eligible for PMV by echo.

Methods And Results: From a multicentre registry of 3,140 patients with at least moderate MS, we included 96 patients (age 56.4±11.

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Zinc oxide NPs (ZnO NPs) are notable in nanomedicine for their exceptional physicochemical and biological properties. This study synthesizes and characterizes beta-carotene-coated ZnO NPs (BT-ZnO NPs) for potential anti-cancer and antimicrobial applications, demonstrating significant efficacy against dental pathogens and oral cancer cells. Scanning Electron Microscopy, EDAX, UV, FTIR, XRD, and Zeta potential analysis of prepared BT-ZnO NPs revealed uniform flower-like crystalline structures with intricate morphology and an average particle size of 38.

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Facial emotion recognition (FER) can serve as a valuable tool for assessing emotional states, which are often linked to mental health. However, mental health encompasses a broad range of factors that go beyond facial expressions. While FER provides insights into certain aspects of emotional well-being, it can be used in conjunction with other assessments to form a more comprehensive understanding of an individual's mental health.

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Clinical significance of various pathogens identified in patients with acute exacerbations of COPD: a multi-center study in South Korea.

Tuberc Respir Dis (Seoul)

December 2024

Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.

Background: Respiratory infection is a major cause of acute exacerbation of chronic obstructive pulmonary disease (AECOPD). We investigated the presence of bacterial and viral pathogens and clinical features in patients with AECOPD.

Methods: This retrospective study included 1,186 patients diagnosed with AECOPD from 28 hospitals in South Korea between 2015-2018.

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Unlabelled: Eccentric training has been proposed as a potential method for enhancing athletes' movement speed. However, a systematic review specifically examining the impact of eccentric training on movement speed in athletes has yet to be conducted. This paper aims to fill this gap by evaluating the effects of eccentric training on movement speed in athletes.

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Purpose: This study aimed to develop a solid self-nanoemulsifying drug delivery system (SNEDDS) and surface-coated microspheres to improve the oral bioavailability of niclosamide.

Methods: A solubility screening study showed that liquid SNEDDS, prepared using an optimized volume ratio of corn oil, Cremophor RH40, and Tween 80 (20:24:56), formed nanoemulsions with the smallest droplet size. Niclosamide was incorporated into this liquid SNEDDS and spray-dried with calcium silicate to produce solid SNEDDS.

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The coronavirus disease 2019 pandemic has underscored the limitations of traditional diagnostic methods, particularly in ensuring the safety of healthcare workers and patients during infectious outbreaks. Smartphone-based digital stethoscopes enhanced with artificial intelligence (AI) have emerged as potential tools for addressing these challenges by enabling remote, efficient, and accessible auscultation. Despite advancements, most existing systems depend on additional hardware and external processing, increasing costs and complicating deployment.

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An overview of additive manufacturing strategies of enzyme-immobilized nanomaterials with application incatalysis and biomedicine.

Int J Biol Macromol

December 2024

School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, South Korea; Research Institute of Cell Culture, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, South Korea. Electronic address:

Meticulous and bespoke fabrication of structural materials with simple yet innovative outlines along with on-demand availability is the imperative aspiration for numerous fields. The alliance between nanotechnology and enzymes has led to the establishment of an inimitable and proficient class of materials. With the advancement in the field of additive manufacturing, the fabrication of some complex biological architects is achievable with similitude to the instinctive microenvironment of the biological tissue.

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Improved aquila optimizer for swarm-based solutions to complex engineering problems.

Sci Rep

December 2024

Department of Computer Science, College of Computer and Information Sciences, King Saud University, 11543, Riyadh, Saudi Arabia.

The traditional optimization approaches suffer from certain problems like getting stuck in local optima, low speed, susceptibility to local optima, and searching unknown search spaces, thus requiring reliance on single-based solutions. Herein, an Improved Aquila Optimizer (IAO) is proposed, which is a unique meta-heuristic optimization method motivated by the hunting behavior of Aquila. An improved version of Aquila optimizer seeks to increase effectiveness and productivity.

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Salinity stress adversely affects wheat growth and productivity, necessitating effective mitigation strategies. This study investigates the combined impact of ascorbic acid (AsA), silver nanoparticles (NPs), and Salvadora oleoides aqueous leaf extract (LE) on wheat tolerance to salinity stress. A randomized complete design (RCD) was employed with fourteen treatments: T1 (5 mM AsA), T2 (10 mM AsA), T3 (20 ppm AgNPs), T4 (40 ppm AgNPs), T5 (5% S.

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Colorectal cancer (CRC) is the third most common cancer globally. Therefore, this study aims to examine data from the National Health Insurance Sharing Service (NHISS) to investigate factors influencing colon cancer incidence, focusing on key variables and optimal cutoff points. The patient cohort from the NHISS database included 1,120,377 individuals aged 1-85 years.

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Purpose: TP53 mutations are common in head and neck squamous cell carcinoma (HNSCC). We evaluated their clinical impact in patients treated with targeted agents or immunotherapy in the KCSG HN15-16 TRIUMPH trial.

Materials And Methods: We analyzed clinical characteristics and outcomes of patients with TP53 mutations in the TRIUMPH trial, a multicenter, biomarker-driven umbrella trial in Korea.

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