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Double diffusive MHD stagnation point flow of second grade fluid in non-Darcy porous media under radiation effects.
Sci Rep
January 2025
Department of Mechanical Engineering, College of Engineering, University of Ha'il, 81451, Ha'il City, Saudi Arabia.
Non-Newtonian fluids are also widely used in a variety of scientific, engineering, and industrial domains, including the petroleum sector and polymer technologies. They are vital in the development of drag-reducing agents, damping and braking systems, food manufacturing, personal protective equipment, and the printing industry. Fluid movement and transport via porous materials draw a lot of attention; they are important in science and technology.
View Article and Find Full Text PDFPerfusion Showdown: Comparison of Multiple MRI Perfusion Techniques in the Grading of Pediatric Brain Tumors.
AJNR Am J Neuroradiol
December 2024
From the Department of Diagnostic Medicine, Dell Medical School at The University of Texas at Austin, Austin, TX, USA (C.Y.H.), Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA (N.S., G.A., Q.W., P.C., M.A., J.G.P., B.R.G., P.R.T., G.D.H.), Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA (E.C., P.R.T., S.A.P.), Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA (P.R.T., S.A.P.), and the Department of Radiology at Texas Children's Hospital, Houston, TX, USA (S.F.K.).
Background And Purpose: There are multiple MRI perfusion techniques, with limited available literature comparing these techniques in the grading of pediatric brain tumors. For efficiency and limiting scan time, ideally only one MRI perfusion technique can be used in initial imaging. We compared DSC, DCE, and IVIM along with ADC from DWI for differentiating high versus low grade pediatric brain tumors.
View Article and Find Full Text PDFMid-term angiographic evaluation of LIMA-LAD anastomoses following LAD endarterectomy in coronary artery bypass grafting.
BMC Cardiovasc Disord
December 2024
Department of Cardiovascular Surgery, Cerrahpasa Medical Faculty, Istanbul University-Cerrahpasa, Istanbul, Turkey.
Objective: Diffuse coronary artery disease remains a critical issue that heart surgeons continue to research in terms of treatment options. An alternative method applied during coronary bypass surgery to achieve complete revascularization is coronary artery endarterectomy. Since the reliability of this technique and its effects on mortality and morbidity are still debated in the literature.
View Article and Find Full Text PDFCT perfusion for lesion-symptom mapping in large vessel occlusion ischemic stroke.
J Neurointerv Surg
December 2024
Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Background: Identifying eloquent regions associated with poor outcomes based on CT perfusion (CTP) may help inform personalized decisions on selection for endovascular therapy (EVT) in patients with large vessel occlusion (LVO) ischemic stroke. This study aimed to characterize the relationship between CTP-defined hypoperfusion and National Institutes of Health Stroke Scale (NIHSS) subitem deficits.
Methods: Patients with anterior circulation LVO, baseline CTP, itemized NIHSS at presentation and 24 hours were included.
Use of the diffusive gradients in thin-films (DGT) technique for smart rapid biomonitoring of trace metals in aquaculture systems.
Mar Environ Res
December 2024
Shandong Yellow River Delta National Nature Reserve Management Committee, Dongying, 257091, PR China.
It is of interest to explore the capabilities of the diffusive gradients in thin-films (DGT) as a substitute for smart biomonitoring of metals in aquaculture waters. DGT deployment and transplantation experiments of scallops Argopecten irradians were carried out in the coastal aquaculture waters. The results showed that DGT-labile metal concentrations were relatively stable in the aquaculture and they were in descending order: Zn > Ni > Cu > Pb ≈ Cd.
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