Ahmed K. Ali¹, Jungpil Shin^2,*, Yujin Lim^3,*, Da-Hun Seong³

CMES-Computer Modeling in Engineering & Sciences, Vol.145, No.3, pp. 4245-4278, 2025, DOI:10.32604/cmes.2025.073871 - 23 December 2025

Abstract Single-signal detection in orthogonal frequency-division multiplexing (OFDM) systems presents a challenge due to the time-varying nature of wireless channels. Although conventional methods have limitations, particularly in multi-input multioutput orthogonal frequency division multiplexing (MIMO-OFDM) systems, this paper addresses this problem by exploring advanced deep learning approaches for combined channel estimation and signal detection. Specifically, we propose two hybrid architectures that integrate a convolutional neural network (CNN) with a recurrent neural network (RNN), namely, CNN-long short-term memory (CNN-LSTM) and CNN-bidirectional-LSTM (CNN-Bi-LSTM), designed to enhance signal detection performance in MIMO-OFDM systems. The proposed CNN-LSTM and CNN-Bi-LSTM architectures are… More >

Shuxun Li^1,2, Xinhao Liu^1,2,*, Yu Zhang^1,2, Yu Zhao^1,2

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.10, pp. 2495-2526, 2025, DOI:10.32604/fdmp.2025.068674 - 30 October 2025

Abstract Hydraulic control valves, positioned at the terminus of pipe networks, are critical for regulating flow and pressure, thereby ensuring the operational safety and efficiency of pipeline systems. However, conventional valve designs often struggle to maintain effective regulation across a wide range of system pressures. To address this limitation, this study introduces a novel Pilot hydraulic valves specifically engineered for enhanced dynamic performance and precise regulation under variable pressure conditions. Building upon prior experimental findings, the proposed design integrates a high-fidelity simulation framework and a surrogate model-based optimization strategy. The study begins by formulating a comprehensive… More >

Yahong Cai¹, Nalini Arumugam², Yukai Chen^3,*

Journal of Psychology in Africa, Vol.35, No.3, pp. 327-333, 2025, DOI:10.32604/jpa.2025.068042 - 31 July 2025

Abstract This study examined the effects of design thinking pedagogy on undergraduates’ career decision-making self-efficacy and employability in career education. Using a quasi-experimental design, Chinese college students (N = 93) were participants in two wings. The experimental group (n = 47) received the design thinking pedagogy, while the control group (n = 46) followed the regularly teacher-centered method. The students completed the career decision-making self-efficacy scale and employability scale before and after the intervention. Independent samples t-test results showed that design thinking pedagogy significantly improves students’ career decision-making self-efficacy and employability. The ANCOVA results showed that the More >

Jin Peng, Jiabei He^*, Na Li^*

International Journal of Mental Health Promotion, Vol.27, No.7, pp. 953-977, 2025, DOI:10.32604/ijmhp.2025.066405 - 31 July 2025

Abstract Background: Parenting exerts a profound influence on children’s mental health and behavioral development. Despite the high prevalence of children’s emotional and behavioral problems (CEBP) in China, evidence-based parenting interventions remain scarcely investigated as preventive public health strategies. This pilot study evaluated a school-based intervention for preventing CEBP. Methods: We employed a quasi-experimental design with propensity score matching (PSM) to select 28 families (intervention: n = 13; control: n = 15) from two matched urban primary schools. Quantitative data from seven validated scales were analyzed using t-tests and ANCOVA. Qualitative insights were derived from 10 semi-structured interviews… More >

José Antonio Climent-Rodríguez¹, Inmaculada González-Lepe², Juan Gómez-Salgado^3,4,*, Yolanda Navarro-Abal¹

International Journal of Mental Health Promotion, Vol.27, No.4, pp. 507-515, 2025, DOI:10.32604/ijmhp.2025.063497 - 30 April 2025

Abstract Background: Employment can support the recovery of individuals with Severe Mental Disorders by promoting autonomy, reducing hospital admissions and associated costs, fostering social connections, and providing structure to their daily lives. The objective of this pilot study was to analyse job satisfaction and perceived social support in people with severe mental disorders who are users of an Employment Guidance and Support Service in southern Spain. Methods: A descriptive cross-sectional pilot study was carried out with a sample of 39 workers with mental disorders from the province of Huelva (southern Spain) who were users of the… More >

Domenico Crea¹, Arben Dedja¹, Matteo Ponzoni^1,2, Stefania Rizzo³, Alberto Cipriani⁴, Riccardo Bariani⁴, Kalliopi Pilichou³, Maria Bueno Marinas³, Danila Azzolina⁵, Massimo A. Padalino^1,6,*

Congenital Heart Disease, Vol.19, No.5, pp. 473-487, 2024, DOI:10.32604/chd.2025.057014 - 31 December 2024

Abstract Background: Since 2015, the pulmonary artery banding (PAB), following the Giessen protocol, has treated end-stage heart failure in selected infants with preserved right ventricular function, acting as a bridge to transplant or recovery, as a result of ventricular-ventricular interaction. Objectives: To elucidate whether PAB is a feasible and reproducible procedure in a rodent model of pharmacologically induced dilated cardiomyopathy (DCM) and to evaluate PAB-induced ventricular rehabilitation. Methods: We used 49 Sprague-Dawley rats divided into four groups: a sham surgery control group, a healthy animal group undergoing PAB, a doxorubicin (DOX)- treated control group, and a DOX… More >

Karim Choubani^1,2,*, Ons Ghriss³, Nashmi H. Alrasheedi¹, Sirin Dhaoui², Abdallah Bouabidi²

Frontiers in Heat and Mass Transfer, Vol.22, No.1, pp. 341-358, 2024, DOI:10.32604/fhmt.2024.047016 - 21 March 2024

Abstract Faced with the world’s environmental and energy-related challenges, researchers are turning to innovative, sustainable and intelligent solutions to produce, store, and distribute energy. This work explores the trend of using a smart sensor to monitor the stability and efficiency of a salt-gradient solar pond. Several studies have been conducted to improve the thermal efficiency of salt-gradient solar ponds by introducing other materials. This study investigates the thermal and salinity behaviors of a pilot of smart salt-gradient solar ponds with (SGSP) and without (SGSPP) paraffin wax (PW) as a phase-change material (PCM). Temperature and salinity were… More >

Lieping Zhang^1,2, Xiaoxu Shi^1,2, Liu Tang^1,2, Yilin Wang³, Jiansheng Peng⁴, Jianchu Zou^4,*

CMC-Computers, Materials & Continua, Vol.78, No.2, pp. 2111-2136, 2024, DOI:10.32604/cmc.2024.047235 - 27 February 2024

Abstract A Rapid-exploration Random Tree (RRT) autonomous detection algorithm based on the multi-guide-node deflection strategy and Karto Simultaneous Localization and Mapping (SLAM) algorithm was proposed to solve the problems of low efficiency of detecting frontier boundary points and drift distortion in the process of map building in the traditional RRT algorithm in the autonomous detection strategy of mobile robot. Firstly, an RRT global frontier boundary point detection algorithm based on the multi-guide-node deflection strategy was put forward, which introduces the reference value of guide nodes’ deflection probability into the random sampling function so that the global… More >

Jordan Sarver, Remington Farley, Shane Daugherty, Jordan Bilbrew, Joshua Palka

Canadian Journal of Urology, Vol.30, No.4, pp. 11624-11628, 2023

Abstract Introduction: Difficult and traumatic urethral catheterization is a common reason for urologic consult. Catheter insertion and management is common for patients who are managed in the hospital setting.
Materials and methods: A four-question survey was distributed across three hospitals at a single-institution.
Results: A total of 41 nursing staff responses were recorded. Forty-four percent of the nursing staff reported prior participation in a traumatic catheter insertion. Ninety percent of total responders reported a prior involvement with a difficulty catheter.
Conclusion: Patient morbidity and healthcare costs regarding traumatic and difficult catheterization is significant. Utility of protocols and education could potentially More >

Amr Mansour¹, Noha M. Gamal^2,*, Alaa M. Nady³, Amr Ibraheem³, Dalia M. Salah⁴, Khaled M. El-Maghraby²

Congenital Heart Disease, Vol.18, No.6, pp. 679-691, 2023, DOI:10.32604/chd.2023.020028 - 19 January 2024

Abstract Background: Closure of an atrial septal defect (ASD) reduces right-side heart volumes by abolishing shunting with simultaneous improvement of the left ventricle (LV) filling and functions due to ventricular interdependence, thereby improving symptoms. Furthermore, studies conducted on atrial volume changes after ASD closure are limited. Cardiac magnetic resonance (CMR) is considered as the gold standard method for measuring cardiac volume and mass. Objective: We aimed to study the effect of transcatheter and surgical closure of secundum ASD on cardiac volumes and systolic functions as well as the fate of tricuspid regurgitation (TR), using CMR analysis. Methods:… More >