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F-DCFPyL PSMA-PET/CT Versus MRI: Identifying the Prostate Cancer Region Most at Risk of Radiation Therapy Recurrence for Tumor Dose Escalation.
Pract Radiat Oncol
December 2024
Radiation Oncology, Centre Hospitalier de l'Université de Montréal (CHUM), Quebec, Canada.
Purpose: Local recurrence of prostate cancer (PCa) after radiation therapy (RT) typically occurs at the site of dominant tumor burden, and recent evidence confirms that magnetic resonance imaging (MRI) guided tumor dose escalation improves outcomes. With the emergence of prostate-specific membrane antigen (PSMA) positron emission tomography (PET), we hypothesize that PSMA-PET and MRI may not equally depict the region most at risk of recurrence after RT.
Methods And Materials: Patients with intermediate- to high-risk PCa and MRI plus PSMA-PET performed before RT were identified.
Trends in syphilis seroreactivity among blood donors: A 17-year retrospective analysis and follow-up at a tertiary care hospital.
Transfus Apher Sci
January 2025
MBBS, Government Medical College and Hospital, Chandigarh, India. Electronic address:
Background And Objectives: This study aimed to assess the seroprevalence of syphilis among blood donors, evaluate the response rate of seroreactive donors, and investigate high-risk behaviors.
Material And Methods: The study presents a retrospective analysis of syphilis seroreactivity among blood donors over a 17 year period. Blood donations were screened for syphilis using the Rapid Plasma Reagin (RPR) card test.
Electron-Donating Zr Induces Suppressed Ru Over-Oxidation and Accelerated Deprotonation Process Toward Efficient and Durable Water Electrolysis.
Small
January 2025
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.
The scarcity of cost-effective and durable iridium-free anode electrocatalysts for the oxygen evolution reaction (OER) poses a significant challenge to the widespread application of the proton exchange membrane water electrolyzer (PEMWE). To address the electrochemical oxidation and dissolution issues of Ru-based electrocatalysts, an electron-donating modification strategy is developed to stabilize WRuO under harsh oxidative conditions. The optimized catalyst with a low Zirconium doping (Zr, 1 wt.
View Article and Find Full Text PDFComputational exploration of the electrochemical oxidation mechanism of thiocyanate catalyzed by cobalt-phthalocyanines.
Phys Chem Chem Phys
January 2025
Departamento de Química, Facultad de Ciencias, Universidad de Chile, P. O. Box 653, Las Palmeras 3425, Ñuñoa, Santiago, Chile.
In this study, we focused on the mechanism of the electrocatalytic oxidation of thiocyanate, which in traditional electrodes typically requires high overpotentials. As models for reducing these overpotentials and catalyzing the reaction, we used a set of modified cobalt phthalocyanines (CoPc), known as electrocatalysts. Using DFT calculations, we explored how modifications to CoPc by adding electron-donating and withdrawing groups and the coordination of 4-amino thiophenol impact the oxidation process.
View Article and Find Full Text PDFA study on indolo[3,2,1-]carbazole donor-based dye-sensitized solar cells and effects from addition of auxiliary donors.
Phys Chem Chem Phys
January 2025
Department of Physics, Assam University, Silchar-788011, India.
Density functional theory has been employed to study indolo[3,2,1-]carbazole donor-based dyes, incorporating one and two units of 2,4-dimethoxybenzene auxiliary donors. Electrostatic potential analysis highlights the dye with one auxiliary donor (D2) as having the highest charge-donating capability. Structural analysis shows that auxiliary donors enhance planarity, reduce steric hindrance, and improve π-conjugation.
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