10,996 results match your criteria: "Yeungnam University.[Affiliation]"

Dipeptides from Lactiplantibacillus plantarum limit Pseudomonas aeruginosa pathogenesis.

J Appl Microbiol

November 2024

Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603203, Chengalpattu District, Tamil Nadu, India.

Aims: Lactobacilli have drawn a great deal of attention due to the heterogeneity of their cells, as well as their remarkable ability to adapt to a range of harsh conditions. One such adaptation response by Lactiplantibacillus plantarum was forming a V-shaped cell structure in low acidic pH conditions. This study aims to identify low pH induced-biofilm formation in L.

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Pneumonia is a dangerous disease that kills millions of children and elderly patients worldwide every year. The detection of pneumonia from a chest x-ray is perpetrated by expert radiologists. The chest x-ray is cheaper and is most often used to diagnose pneumonia.

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Efficiently treating wastewater, particularly the elimination of heavy metal ions from water systems, continues to be one of the most pressing and complex challenges in modern environmental management. In this work, reduced graphene oxide coupled silver molybdate binary nanocomposites (RGO-AgMoO NCs) have been prepared via hydrothermal method. The crystalline nature and surface properties of the developed RGO-AgMoO NCs were proved by XRD, FTIR, SEM, and EDS techniques.

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Lightweight Advanced Deep Neural Network (DNN) Model for Early-Stage Lung Cancer Detection.

Diagnostics (Basel)

October 2024

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

Article Synopsis
  • Lung cancer has a high mortality rate, but early prediction can significantly reduce risks; current prediction methods face challenges like low accuracy and high false-positive rates.
  • This research introduces a novel algorithm that combines two deep neural networks (WDSI and SS-CL) to enhance early lung cancer detection using 3D CT scan images from the LUNA16 dataset.
  • The proposed lightweight model achieves impressive results with 98.2% accuracy, improved noise reduction, and efficiency metrics (32.8% PSNR and 0.97 SSIM), showing promise for better medical image analysis and patient outcomes.
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Effective wastewater treatment remains a critical challenge, especially when dealing with hazardous pollutants like antimony (Sb(III)). This study addresses this issue by using innovative nanocomposites to remove Sb(III) ions from water, while simultaneously repurposing the spent adsorbents for energy storage applications. We developed reduced graphene oxide-NiFeO-SiO-polyindole nanocomposites (RGO-NiFeO-SiO-PIn NCs) via a hydrothermal synthesis method, achieving a high removal efficiency of 91.

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The classification of ECG signals is a critical process because it guides the diagnosis of the proper treatment process for the patient. However, any form of disturbance with ECG signals can be highly conspicuous because of the mechanics involved in data acquisition from living beings, which has a significant impact on the classification procedure. The purpose of this research work is to advance ECG signal classification results by employing numerous denoising methods and, in turn, boost the accuracy of cardiovascular diagnoses.

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Cloud IaaS Optimization Using Machine Vision at the IoT Edge and the Grid Sensing Algorithm.

Sensors (Basel)

October 2024

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

Article Synopsis
  • Security grids utilizing HD IoT cameras are increasingly popular for perimeter surveillance, but they face challenges with high bandwidth and storage needs for cloud video transmission.
  • This paper introduces a Machine Vision at the IoT Edge (Mez) technology combined with a Grid Sensing (GRS) algorithm to reduce cloud resource costs, showing a 31.29% decrease in bandwidth and 22.43% in storage.
  • The system optimizes video frame processing and automatically ranks bandwidth needs of IoT nodes to enhance overall efficiency and minimize resource usage.
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A tremendous amount of recent work has been done on different metal oxide nanomaterials for biological activities and photocatalytic dye degradation. This work used the Cissus quadrangularis leaf extract to prepare TiO, CdO, MnO, and ZnO nanoparticles using a green synthesis approach. To ascertain the physicochemical characteristics of the generated metal oxide nanoparticles, various characterisation techniques were used.

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Ligustrum foliosum Nakai, a species endemic to South Korea, is a member of the Oleaceae family. This study provides a comprehensive taxonomic identification of L. foliosum based on its macro- and micromorphological characteristics, particularly focusing on the leaf foliar epidermal taxonomy.

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Efficacy and safety of radial probe endobronchial ultrasound-guided biopsy for peripheral lung lesions in chronic obstructive pulmonary disease patients.

Transl Lung Cancer Res

October 2024

Division of Pulmonology and Allergy, Department of Internal Medicine, Yeungnam University College of Medicine, Yeungnam University Hospital, Daegu, Republic of Korea.

Background: Chronic obstructive pulmonary disease (COPD) is associated with frequent complications after transthoracic biopsy. Radial probe endobronchial ultrasound-guided transbronchial lung biopsy (RP-EBUS-TBLB) is widely used to diagnose peripheral pulmonary lesions (PPLs). However, the efficacy and safety of this procedure for the diagnosis of PPLs in patients with COPD remain poorly understood.

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Background/aims: We previously reported that patients with moderate-to-severe ulcerative colitis (UC) often experience common mental disorders (CMDs) such as anxiety and depression, necessitating immediate psychological interventions within the first 4 weeks of diagnosis. In this 3-year follow-up study of the MOSAIK cohort in Korea, we examined the effects of CMDs at initial diagnosis on clinical outcomes and health-related quality of life (HRQoL).

Methods: We examined differences in clinical outcomes (evaluated based on clinical response, relapse, hospitalization, and medication use) and HRQoL (assessed using the Inflammatory Bowel Disease Questionnaire [IBDQ] and Short Form 12 [SF-12]) according to Hospital Anxiety and Depression Scale (HADS) scores at diagnosis.

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Background: Roots perform multifaceted functions in plants such as movement of nutrients and water, sensing stressors, shaping microbiome, and providing structural support. How roots perceive and respond above traits at the molecular level remains largely unknown. Despite the enormous advancements in crop improvement, the majority of recent efforts have concentrated on above-ground traits leaving significant knowledge gaps in root biology.

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Passivation Effect of Rock-Salt Nitride Materials on a Planar -Si Photocathode for Solar Water Reduction.

ACS Appl Mater Interfaces

November 2024

Department of Chemistry Education and Optoelectronic Convergence Research Center, Chonnam National University, Gwangju 61186, Republic of Korea.

Article Synopsis
  • Photoelectrochemical water splitting is becoming important for producing clean hydrogen fuel using sunlight, driven by concerns over fossil fuels and pollution.
  • Silicon photocathodes are effective due to their light absorption abilities, but issues like low voltage and rapid corrosion limit their performance.
  • This study explores a titanium nitride passivation layer and a molybdenum oxynitride cocatalyst to improve the stability and efficiency of silicon photocathodes, achieving a high onset potential and over 140 hours of stable operation under harsh conditions.
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Article Synopsis
  • Epileptic seizures are dangerous neurological events that require early detection for effective treatment, leading to the development of advanced artificial intelligence methods for improved detection.
  • This study introduces a new ensemble approach, combining fast independent component analysis random forest (FIR) and prediction probability, using EEG data to enhance the early detection of seizures.
  • Experimental results show that the FIR model, particularly when combined with support vector machine (FIR + SVM), achieves a high detection accuracy of 98.4%, indicating its potential for early diagnosis and improved patient outcomes in the medical field.
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The study develops polyamine-functionalized graphene oxide-supported NiCoS nanomaterial using a metal-organic framework (MOF). This modification adds free amines and oxygen functionality to the graphene oxide electrode surface, resulting in the decrease in the 2 theta value from 11.2 to 7.

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Prediction of menstrual recovery patterns in premenopausal women with breast cancer taking tamoxifen after chemotherapy: an ASTRRA Substudy.

Breast Cancer Res

November 2024

Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.

Background: Chemo-endocrine therapy can lead to various side effects associated with ovarian dysfunction. Predicting menstrual recovery is necessary to discuss the treatment-related issues regarding fertility and premature menopause with patients.

Methods: In the ASTRRA trial, patients who resumed ovarian function within 2 years after chemotherapy were randomized to receive tamoxifen for 5 years or OFS with tamoxifen for 2 years.

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Article Synopsis
  • * Diabetic wounds (DWs) are serious complications for DM patients, and existing treatments are often inadequate due to their complex nature.
  • * Innovative nanoparticles are being explored for treating DWs, as they can scavenge reactive oxygen species, promote blood vessel growth, fight infections, and support tissue structure, offering promising avenues for healing and regeneration.
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  • This study presents electrostatic spraying as an innovative method to create nanoparticles for poorly water-soluble drugs, improving particle size distribution compared to traditional spray-drying methods.
  • Regorafenib was used as a model drug, and electrostatic spray-dried nanoparticles (ESDN) showed smaller, more uniform sizes, with enhanced solubility and faster release in water than conventional spray-dried nanoparticles (CSDN).
  • ESDN also exhibited greater cytotoxicity in cancer cells and significantly improved oral bioavailability and antitumor effects, indicating its potential for better drug delivery systems.
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Rice production is highly susceptible to various pathogens, including Rhizoctonia solani, Curvularia lunata, and Epicoccum rostratum, which are major threats in Asia. Exploring biological control methods using endophytic bacteria offers promising opportunities to enhance rice resilience against these lethal diseases. Using 16S RNA sequencing, we identified four endophytic isolates of Bacillus spp.

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Biofilm-producing bacteria associated with wound infections exhibit exceptional drug resistance, leading to an escalation in morbidity, worse clinical outcomes (including delay in the healing process), and an increase in health care cost, burdening the whole system. This study is an attempt to estimate the prevalence and the relationship between the biofilm-forming capacity and multi-drug resistance of wound bacterial isolates. The findings intended to help clinicians, healthcare providers and program planners and to formulate an evidence-based decision-making process, especially in resource-limited healthcare settings.

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P-type pilus PapG protein elicits toll-like receptor 2-mediated immune activation during cancer immunotherapy.

Int J Biol Macromol

December 2024

Department of Microbiology, Brain Korea 21 project, University of Ulsan College of Medicine, ASAN Medical Center, Seoul 05505, South Korea. Electronic address:

The immune activation ability of FimH, an adhesion protein in pili of Escherichia coli (E. coli), has been recently reported. However, studies on the immune activity of PapG, another major pili terminal protein, have not been well explored.

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Sustainable supercapacitors of sulfur-doped carbon from environmentally friendly sodium lignosulfonate impregnated with bacterial cellulose.

Int J Biol Macromol

December 2024

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

The use of sustainable natural sources to fabricate porous carbon materials has garnered significant interest in energy storage. This study proposes a method for synthesizing sulfur-doped porous carbon (S‑carbon) materials via the carbonization of bacterial cellulose (BC) impregnated with sodium lignosulfonate (LS), which functions as a renewable source of both carbon and sulfur, eliminating the need for external activation processes. The carbonization process yielded S‑carbon with a notable sulfur content of 1.

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Kinetic study and optimization of ginger mediated ochratoxin A reduction: An eco-friendly approach including toxicity evaluation.

Chemosphere

November 2024

Department of Food Science and Technology, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea; Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Gyeongsangbuk-do, 38541, Republic of Korea. Electronic address:

Article Synopsis
  • Ochratoxin A (OTA) is a harmful substance produced by certain fungi that contaminates food and poses health risks as a Group 2B carcinogen to humans and animals.
  • In experiments, ginger juice demonstrated a remarkable ability to reduce OTA levels by 95.63% under specific conditions, showing efficiency that depended on temperature, pH, and salt concentration.
  • Additionally, treatments with ginger juice improved cell viability in liver cancer cells and reduced harmful ROS levels, as well as reversed adverse effects of OTA in zebrafish embryos, highlighting ginger’s protective potential against OTA toxicity.
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