Liang Yin^1,*, Youjia Gao², Jie Ding¹, Sichao Su¹

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.4, 2026, DOI:10.32604/fdmp.2026.079847 - 07 May 2026

Abstract To address the thermal management challenges associated with localized high heat flux in electronic chips, this study proposes a bionic spider-web microchannel heat sink using deionized water as the coolant. Numerical simulations are conducted for two configurations, one with pinfins at the hotspot (Model A) and one without pinfins (Model B). The effects of Reynolds number and hotspot heat flux on flow distribution, pumping power, thermal resistance and temperature uniformity are systematically analyzed. Results show that the flow distribution varies significantly among channels, with higher flow rates near the inlet. Increasing the Reynolds number raises More >

Shengqun Chen^1,2,#, Lianwen Shen^1,2,#, Shuang Qu^1,2, Xia Jiang^1,2,3,*, Gang Wang^1,2,4,*

Phyton-International Journal of Experimental Botany, Vol.95, No.4, 2026, DOI:10.32604/phyton.2026.078590 - 28 April 2026

Abstract Acer truncatum is a significant woody oil-bearing tree species known for its ability to synthesize various unsaturated fatty acids. This study systematically analyzes the lipid metabolic pathways and the associated transcript abundance changes involved in the biosynthesis and accumulation of seed oil in A. truncatum. By integrating lipidomics and transcriptomics analyses across different developmental stages of A. truncatum seeds, we thoroughly investigate the dynamic characteristics of oil metabolism. The results show that triacylglycerols (TAGs) become the dominating lipid class throughout seed development and that their amount increases greatly as the seeds mature, whereas diacylglycerols (DAGs) show a significantly… More >

Wei Zhang, Xixi Peng^*

Canadian Journal of Urology, Vol.33, No.2, pp. 387-401, 2026, DOI:10.32604/cju.2026.072565 - 20 April 2026

Abstract Background: Observational studies have suggested potential associations between myocardial infarction (MI) and cancer risk, but the causal nature of these relationships remains unclear due to confounding factors and reverse causation. We aimed to investigate the bidirectional causal relationships between MI and urinary system cancers using genetic instruments. Methods: We conducted a two-sample Mendelian randomization (MR) analysis using summary statistics from large-scale genome-wide association studies. Genetic variants associated with MI were used as instrumental variables (n = 19 SNPs for prostate cancer [PCa] and malignant neoplasm of kidney [MRN], n = 6 SNPs for bladder cancer,… More >

Manish Kuchakulla^1,2,*, Hriday P. Bhambhvani^1,2, Robert Fisch^1,2, Runzhuo Ma^1,2, Jonathan Gal², Marc Goldstein²

Canadian Journal of Urology, Vol.33, No.2, pp. 441-449, 2026, DOI:10.32604/cju.2025.071275 - 20 April 2026

Abstract Objectives: Men with obstructive azoospermia (OA) or infertility often require surgical sperm retrieval for assisted reproductive techniques. While sperm can be successfully obtained from either the testis or epididymis in these patients, sperm DNA integrity may differ between retrieval sites, which could influence reproductive outcomes. This study aimed to determine whether bilateral epididymal and/or testicular sperm extraction is necessary in men with OA or infertility and elevated DNA fragmentation index (DFI). Methods: We retrospectively analyzed men who underwent bilateral testicular biopsy and/or microscopic epididymal sperm aspiration (MESA) by a single surgeon from 2020–2022. TUNEL assays… More >

Zhipeng Ran^*, Peishuang Xiao, Shuen Liang, Keping Chen, Xiuli Zhao^*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.074431 - 03 April 2026

Abstract This study presents the development of high-performance, solvent-free polyurethane-urea (PU) elastomeric coatings engineered for rapid curing and precise sprayability. Utilizing polyoxytetramethylene glycol (PTMG) as the primary polyol and a static-mixing spraying technique, the formulations were systematically optimized. It was found that a soft-segment content of 64% yields optimal mechanical properties, achieving a remarkable tensile strength exceeding 30 MPa. Crucially, the incorporation of an ultra-low concentration (0.002 wt%) of dibutyltin dilaurate catalyst was sufficient to enhance curing completeness and mechanical performance while effectively eliminating moisture-induced foaming, a common challenge in solvent-free spray applications. The gel and… More >

Yuzhe Gu¹, Wenwu Wang^1,2, Guanggen Zeng^1,2, Xia Hao^2,3, Lili Wu^1,2, Jingquan Zhang^1,2,*

Chalcogenide Letters, Vol.23, No.3, 2026, DOI:10.32604/cl.2026.079159 - 03 April 2026

Abstract Doping the absorber layer is a critical process for enhancing the performance of polycrystalline CdSeTe solar cells. Replacing traditional Cu doping with Group V dopants offers a pathway to fabricate devices with improved efficiency and stability. However, the dopant activation rate in polycrystalline structures remains low, typically only a few percent. While rapid thermal annealing (RTA) has been successfully employed to achieve high activation rates in single-crystal CdTe devices, its application to polycrystalline CdSeTe solar cells has been scarcely reported. In this study, we systematically applied multi-step annealing to investigate the dopant activation of in-situ As-doped More > Graphic Abstract

Mete Han Kizilkaya¹, Boran Cakan^2,3,*, Mehmet Bicer⁴, Ender Odemis^1,5

Structural and Congenital Heart Disease, Vol.21, No.1, 2026, DOI:10.32604/schd.2026.074189 - 31 March 2026

Abstract Background: Transcatheter closure of perimembranous ventricular septal defects (pmVSDs) with Lifetech™ Konar-Multifunctional Occluder (MFO) has demonstrated high procedural success and safety. However, long-term complications due to valve–device interaction are rarely reported. We describe a pediatric patient who developed progressive right ventricular outflow tract (RVOT) obstruction and severe tricuspid regurgitation 20 months after MFO closure, highlighting mechanisms, management, and outcomes. Case Description: A 13-year-old girl underwent successful MFO closure of a 6-mm pmVSD. Early follow-up showed trivial tricuspid regurgitation and mild subpulmonic stenosis. Pre-procedural imaging revealed right ventricular hypertrophy caused by long-standing jet-related turbulence from the pmVSD, with… More >

Mohammadreza Vafaei^1,*, Sophia C. Alih², Abdirahman Abdulkadir¹

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.3, 2026, DOI:10.32604/cmes.2026.078250 - 30 March 2026

Abstract Rapid quantification of seismic-induced damage immediately following an earthquake is critical for determining whether a structure is safe for continued occupation or requires evacuation. This study proposes a novel damage identification method that utilizes limited strain data points, significantly reducing installation, maintenance, and data analysis costs compared to traditional distributed sensor networks. The approach integrates finite element (FE) modeling to generate capacity curves through pushover analysis, incorporates noise-augmented datasets for Artificial Neural Network (ANN) training, and classifies structural conditions into four damage levels: Operational (OP), Immediate Occupancy (IO), Life Safety (LS), and Collapse Prevention (CP).… More > Graphic Abstract

Najat Almutairi¹, Mohammed Messaoudi², Faisal Muteb K. Almalki³, Sayed Saber^3,4,*

CMES-Computer Modeling in Engineering & Sciences, Vol.146, No.3, 2026, DOI:10.32604/cmes.2026.076371 - 30 March 2026

Abstract This paper introduces a novel fractional-order model based on the Caputo–Fabrizio (CF) derivative for analyzing computer virus propagation in networked environments. The model partitions the computer population into four compartments: susceptible, latently infected, breaking-out, and antivirus-capable systems. By employing the CF derivative—which uses a nonsingular exponential kernel—the framework effectively captures memory-dependent and nonlocal characteristics intrinsic to cyber systems, aspects inadequately represented by traditional integer-order models. Under Lipschitz continuity and boundedness assumptions, the existence and uniqueness of solutions are rigorously established via fixed-point theory. We develop a tailored two-step Adams–Bashforth numerical scheme for the CF framework More >

Achille Désiré Betené Omgba^1,2,*, Cheryle Manfouo Tchoupmene¹, Benoit Ndiwe^1,2,*, Antonios N. Papadopoulos³, Remy Legrand Ndoumou Belinga¹, Julien Clerc Obam¹, Christel Cedrig Laris Nsi Ongo¹, Ioanna A. Papadopoulou⁴, Armel Brice Mvogo^1,2, Fabien Betené Ebanda^1,2, Atangana Ateba^1,2, Antonio Pizzi⁵

Journal of Renewable Materials, Vol.14, No.3, 2026, DOI:10.32604/jrm.2026.02025-0201 - 25 March 2026

Abstract The high hydrophilicity of pineapple leaf fibres (PALF) limits their use in cement- and gypsum-based composites exposed to moisture. This study evaluates, for the first time, the combined effect of palm kernel oil and beeswax on the hygroscopic resistance and mechanical stability of PALF. The fibres were functionalised with three formulations (oil, wax, and a 1:2 oil/wax blend) applied at different mass ratios (CR = 0.5–2). Treatments increased the average bundle diameter by up to +46% (238 μm) and reduced density down to 1.06 g/cm³. Hygroscopically, water absorption decreased from 202.4% (raw fibres) to 76.3% (CR… More > Graphic Abstract