Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/s0969-8043(00)00080-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Artificial intelligence for hemodynamic monitoring with a wearable electrocardiogram monitor.
Commun Med (Lond)
January 2025
Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, USA.
Background: The ability to non-invasively measure left atrial pressure would facilitate the identification of patients at risk of pulmonary congestion and guide proactive heart failure care. Wearable cardiac monitors, which record single-lead electrocardiogram data, provide information that can be leveraged to infer left atrial pressures.
Methods: We developed a deep neural network using single-lead electrocardiogram data to determine when the left atrial pressure is elevated.
An Unusual Semiquinone-mediated Self-catalysis Redox Mechanism for the Reaction between Halohydroquinones and N-Substituted Hydroxamic acids.
Free Radic Biol Med
January 2025
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing 100085, P.R. China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, P. R. China; Linus Pauling Institute, Oregon State University, Corvallis, OR 97331. Electronic address:
We found recently that a C-C bonding phenyl-quinone product was produced with high yield (96%) from the reaction between 2,5-dichloro-1,4-Benzoquinone (DCBQ) and N-phenylbenzohydroxamic acid (N-PhBHA) via an unusual Claisen rearrangement mechanism, accompanied with the concurrent formation of the minor byproducts amide (N-phenylBenzamide, N-PhBA; only 2% yield) and hydroxychloroquinone (2% yield). Surprisingly, when DCBQ was replaced with its reduced form 2,5-dichloro-1,4-hydroquinone (DCHQ), no C-C bonding product was detected, whereas N-PhBA (83% yield) and hydroxychloroquinone (80% yield) became the predominant products, indicating a dramatic mechanistic shift. The ascorbate reduction experiment suggested that it was not DCHQ itself, but its corresponding semiquinone radical, that directly reacts with N-PhBHA.
View Article and Find Full Text PDFHybrid polysaccharide film infused with polyoxometalates for inkless printing and solar ultraviolet sensing.
Int J Biol Macromol
January 2025
School of Chemistry and Chemical Engineering Southeast University, Jiangning District, Nanjing, Jiangsu Province 211189, PR China. Electronic address:
Inkless paper made from photochromic materials has garnered significant interest owing to its potential to reduce both ink and paper pollution during production. In this research, we synthesized a dual-material film (EC-PVP/PGMEA/PMoA) and conducted a detailed investigation of its photochromic response to visible light and its microstructural properties. Initially, the film appeared as a translucent yellow, but upon exposure to visible light, it shifted to blue with a maximum absorption peak of 2.
View Article and Find Full Text PDFEfficient visible-light-driven photocatalytic degradation of antibiotics in water by MXene-derived TiO-supported SiO/TiC composites: Optimisation, mechanism and toxicity evaluation.
Environ Pollut
December 2024
Department of Nano-Chemical Engineering, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran; Drilling Nanofluid Lab, Shiraz University, Shiraz, Iran; Nanotechnology Research Institute, Shiraz University, Shiraz, Iran. Electronic address:
Photocatalytic technology has emerged as a promising solution to global water contamination, mainly through the effective degradation of persistent pharmaceutical pollutants. However, a few challenges still exist in enhancing degradation efficiency, reducing the toxicity of by-products, and ensuring cost-effective scalability. This study focuses on Tetracycline Hydrochloride (TCH) as an index antibiotic pollutant to evaluate the performance of a novel MXene-derived TiO-supported SiO₂/TiC composite (SMXT) synthesized using ultrasonic and wet impregnation techniques.
View Article and Find Full Text PDFWhen do science recommendations stop being effective? The case of the sprawl of diesel electricity generators in Beirut.
PLoS One
December 2024
Department of Chemistry, American University of Beirut, Beirut, Lebanon.
Lebanon, plagued by political and economic crises, experienced a government collapse in early 2020, leading to an electrical nationwide blackout by 2023. Diesel generators were used to compensate for the absence of power production from the national provider, Electricité du Liban (EDL). To investigate the effect of the crisis on the levels of 16 EPA particle bound polycyclic aromatic hydrocarbons (PPAHs), an annual comparative analysis of three locations within Beirut started in 2022 and ended in 2023.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!