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Microscopic evidence for nanoparticle-mediated growth of native gold in sulfide deposits at the Higashi-Aogashima Knoll Caldera hydrothermal field.
PLoS One
January 2025
Faculty of Science and Engineering, Waseda University, Tokyo, Japan.
Gold (or electrum) in hydrothermal fluid precipitates directly from gold sulfide complex and/or partly via suspended nanoparticles. The hydrothermal fluid contains "invisible gold" that is atomically dispersed in sulfide minerals or as nanoparticles with a size of less than 10 nm. However, the contribution of these gold nanoparticles to the formation of native gold and its alloy with silver (electrum) remains unclear.
View Article and Find Full Text PDFEnabling structural biological electron paramagnetic resonance spectroscopy in membrane proteins through spin labelling.
Curr Opin Chem Biol
December 2024
BioEmPiRe Centre for Structural Biological EPR Spectroscopy, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK; Manchester Institute of Biotechnology, University of Manchester, Manchester M1 7DN, UK. Electronic address:
Pulsed dipolar electron paramagnetic resonance spectroscopy (PDS), combined with site-directed spin-labelling, represents a powerful tool for the investigation of biomacromolecules, emerging as a keystone approach in structural biology. Increasingly, PDS is applied to study highly complex integral membrane protein systems, such as mechanosensitive ion channels, transporters, G-protein coupled receptors, ion pumps, and outer membrane proteins elucidating their dynamics and revealing conformational ensembles. Indeed, PDS offers a platform to study intermediate or lowly-populated states that are otherwise invisible to other modern methods, such as X-ray crystallography, cryo-EM, and hydrogen-deuterium exchange-mass spectrometry.
View Article and Find Full Text PDFFood Security in the Rural Mapuche Elderly: Analysis and Proposals.
Nutrients
November 2024
Departamento de Ciencias de La Computación e Informática, Facultad de Ingeniera y Ciencias, Universidad de la Frontera, Temuco 4811240, Chile.
Background: The increase in population longevity often occurs in contexts of inequity and relative poverty, accompanied by economic deterioration. This becomes a social determinant that has a direct impact on food security. This phenomenon particularly affects certain groups and territories, although there is still a lack of disaggregated references.
View Article and Find Full Text PDFIncreasing the visibility of Asian American, Native Hawaiian, and Pacific Islanders in substance use research: A call to action.
Drug Alcohol Depend
August 2024
School of Social Work, Boston University, United States.
Asian Americans, Native Hawaiians, and Pacific Islanders (AA/NH/PI) are one of the most diverse racial and ethnic groups in the U.S., encompassing origins from over forty countries.
View Article and Find Full Text PDFUnique Needs and Challenges Experienced by Young People With Stroke: An International Qualitative Analysis.
Neurol Clin Pract
February 2025
University of Southern California (MD, CW), Los Angeles; Université de Montréal (MD); CRIR-Institut universitaire sur la réadaptation en déficience physique de Montréal (IURDPM) (MD), CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Quebec, Canada; Cyprus University of Technology (MC), Limassol, Cyprus; University of Fribourg (MC), Switzerland; Singapore Institute of Technology (LKK); Singapore General Hospital (ST); University Hospital Centre Zagreb (DB), Croatia; University of Virginia (SC); Richmond VA Medical Center (SC); Assiut University (AN), Egypt; Antwerp University Hospital (LY), Belgium; University of Tasmania (DA), Hobart (TAS); The Florey Institute of Neuroscience and Mental Health (JB), Heidelberg, Victoria, Australia; and The KITE Research Institute- Toronto Rehabilitation Institute (UG), University Health Network, Ontario, Canada.
Background And Objectives: Stroke in young adults has a lifelong impact on activities of daily life, including driving, leisure, and community-based activities; social participation; and reduced productivity. The needs of young people with stroke (YPwS) are likely to vary across different countries, and the development of age-adapted information and interventions is therefore critical in addressing those needs. This study aims to (1) identify the unmet needs of people with stroke aged 18 to 55 years across countries with varied income levels and cultural backgrounds and (2) determine their preferred means to access knowledge and information about stroke in the young.
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