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An investigation of antiproliferative and antioxidant properties of crude extracts from Sedum nicaeense All. (Crassulaceae).
Pak J Pharm Sci
January 2025
Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan.
This study evaluated the antioxidant and antiproliferative effects of aqueous, ethanolic and methanolic extracts of Sedum nicaeense flowers and leaves. The MTT assay assessed cytotoxicity against colorectal cancer cells (Caco-2, HCT-116), breast cancer cells (T47D, MCF-7) and normal fibroblasts (MRC-5), while the ferric-reducing antioxidant power (FRAP) assay measured antioxidant capacity. Essential oils from flowers and leaves were analyzed using gas chromatography-mass spectrometry (GC-MS).
View Article and Find Full Text PDFPeruvian medical residency selection: a portrayal of scores, distribution, and predictors of 28,872 applicants between 2019 and 2023.
BMC Med Educ
January 2025
Centro de Investigación de Educación Médica y Bioética - EDUCAB-UPT, Facultad de Ciencias de la Salud, Universidad Privada de Tacna, Tacna, Peru.
Background: Residency selection is crucial for enhancing the healthcare workforce. Most research on this topic arises from the global north, leaving a gap from the global south perspective. Hence, this study aimed to evaluate factors associated with the Peruvian National Residency Examination (ENARM) in Peruvian applicants.
View Article and Find Full Text PDFPreparation and mechanical performance of fluorite tailings geopolymer precursor under alkaline heat activation.
Sci Rep
January 2025
School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou, 450045, People's Republic of China.
As one of the bulk solid wastes in the Yellow River basin in China, fluorite tailings urgently need to be utilized as resources. In this paper, NaOH and NaCO were used for alkali thermal activation of ground fluorite tailings under different temperature conditions, and the reactivity was analyzed by XRD, SEM and compressive strength after hydration, so as to evaluate the feasibility of fluorite tailings as geopolymer precursor. The results show that the fluorite tailings can exhibit certain reactivity under alkaline heat excitation, and significant amorphous glass phase can be detected.
View Article and Find Full Text PDFThe art and science of translucent color organic solar cells.
Nat Commun
January 2025
Department of Physics, Research Centre of Excellence for Organic Electronics and Institute of Advanced Materials, Hong Kong Baptist University, Hong Kong, China.
The artistic and scientific perspectives of the translucent color organic solar cells (OSCs), made with the emerging narrowband nonfullerene acceptors are explored. The translucent color OSCs, comprising a Fabry-Pérot microcavity optical coupling layer, have a power conversion efficiency of >15% and a maximum transparency of >20% for the three primary colors. The performance-color relationship of the translucent color OSCs is analyzed using a combination of high-throughput optical computing and experimental optimization, allowing light with desired color to pass through, while absorbing enough light to generate electricity.
View Article and Find Full Text PDFThe droplet dynamics of asymmetrical impingement on moving ridged surface.
J Colloid Interface Sci
January 2025
School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093 China. Electronic address:
Hypothesis: The depth of research into the mechanism of droplet impacting structured surfaces dictates the efficacy of their applications. The impact stress generated when a droplet impacts a surface is a pivotal factor influencing the efficiency of surface applications, ultimately determining the extent of surface wear. Despite the systematic examination of impact force, there remains a scarcity of research on impact stress and its mitigation strategies.
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