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Acidogenic fermentation of Ulva in a fed-batch reactor system: tubular versus foliose biomass.
Enzyme Microb Technol
December 2024
University of Galway, University Road, Galway H91 TK33, Ireland; Science Foundation Ireland MaREI Centre for Energy, Climate and Marine, Environmental Research Institute, University College Cork, Cork, Ireland.
The present study proposes a biorefinery of the macroalgae Ulva, focusing on evaluating two different morphologies of the species (foliose and tubular) during acidogenic fermentation in fed-batch reactors. Stage 1 of the study evaluates lyophilised foliose and tubular Ulva, whilst Stage 2 analyses the impact of ulvan extraction on volatile fatty acids yield and changes in carbohydrate availability. Acetic, propionic, and butyric acids were produced from each substrate, with peak concentrations of total VFAs recorded at 2179.
View Article and Find Full Text PDFAnalysis of the structure and robustness of the global semiconductor trade network.
PLoS One
January 2025
Shantou University Business School, Shantou University, Shantou, Guangdong, China.
Amidst the global restructuring of the semiconductor supply chain, this paper constructs a global semiconductor trade network (2007, 2012, 2017, 2021) encompassing three segments (raw materials, equipment, and finished components), based on the CEPII database. After initially exploring trade flows among different regions, the paper conducts an in-depth analysis of the network's overall structure and the significance of its nodes. Furthermore, the evolution of the trade network's community structure is discussed and its robustness and dynamics over recent years are assessed through computer program simulation.
View Article and Find Full Text PDFImpacts of variable magnetic field on ternary Casson nanofluid flow through ciliated arterial walls incorporating interfacial nanolayer.
Electromagn Biol Med
January 2025
Department of Applied Mathematics, University of Calcutta, Kolkata, India.
The current investigation explores tri-hybrid mediated blood flow through a ciliary annular model, designed to emulate an endoscopic environment. The human circulatory system, driven by the metachronal ciliary waves, is examined in this study to understand how ternary nanoparticles influence wave-like flow dynamics in the presence of interfacial nanolayers. We also analyze the effect of an induced magnetic field on Ag-Cu-/blood flow within the annulus, focusing on thermal radiation, heat sources, buoyancy forces and ciliary motion.
View Article and Find Full Text PDFThe gut microbiota-SCFA-inflammation axis in patients with AECOPD.
PLoS One
January 2025
Department of Respiratory Medicine in Zhejiang Hospital, Hangzhou, Zhejiang Province, China.
Objectives: The aim of the study was to explore the alteration of microbiota and SCFA in gut and inflammation in acute exacerbation chronic obstructive pulmonary disease (AECOPD) patients, and to test the hypothesis that a disorder of gut microbiota will lead to the alteration of SCFA, which will aggravate inflammation in AECOPD patients.
Methods And Results: 24 patients with AECOPD and 18 healthy volunteers were included in the study. Gut microbiota were analyzed by 16S rDNA and serum was used to detect levels of inflammatory factors by ELISA.
Assessing indirect biodiversity conservation benefits of fisheries closures in the Gulf of St. Lawrence, Canada.
PLoS One
January 2025
Centre for Fisheries Ecosystems Research, Fisheries and Marine Institute of Memorial University, St John's, Newfoundland and Labrador, Canada.
Marine biodiversity loss is a pressing global issue, intensified by human activities and climate change. Complementary to marine protected areas (MPAs), Other Effective Area-Based Conservation Measures (OECMs) have emerged as a key tool to mitigate this loss by providing long-term biodiversity protection. However, while OECMs primarily target specific taxa, they can also offer indirect biodiversity conservation benefits (BCBs) to a wider range of taxa.
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