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Silver-coated PMMA nanoparticles-on-a-mirror substrates as high-performance SERS sensors for detecting infinitesimal molecules.
Sci Rep
December 2024
Jihua Laboratory, Foshan, 528000, China.
Surface-enhanced Raman scattering (SERS) technology has attracted more and more attention due to its high sensitivity, low water interference, and quick measurement. Constructing high-performance SERS substrates with high sensitivity, uniformity and reproducibility is of great importance to put the SERS technology into practical application. In this paper, we report a simple fabrication process to construct dense silver-coated PMMA nanoparticles-on-a-mirror SRES substrates.
View Article and Find Full Text PDFLegume content estimation from UAV image in grass-legume meadows: comparison methods based on the UAV coverage vs. field biomass.
Sci Rep
December 2024
Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization (NARO), Tsukuba, Ibaraki, Japan.
Legume content (LC) in grass-legume mixtures is important for assessing forage quality and optimizing fertilizer application in meadow fields. This study focuses on differences in LC measurements obtained from unmanned aerial vehicle (UAV) images and ground surveys based on dry matter assessments in seven meadow fields in Hokkaido, Japan. We propose a UAV-based LC (LC) estimation and mapping method using a land cover map from a simple linear iterative clustering (SLIC) algorithm and a random forest (RF) classifier.
View Article and Find Full Text PDFPerceived Neighbourhood Walkability and Depressive Symptoms of Rural Older Adults in Urbanisation: The Role of Community-Based Social Capital.
J Community Psychol
January 2025
School of Humanities, Shanghai Institute of Technology, Shanghai, China.
This study aims to explore the association between community-based social capital, namely clan identity and sense of community (SOC), and perceived neighbourhood walkability (PNW) in relation to depressive symptoms among rural older adults in urbanisation. A sample of 489 older adults in an urbanising county of Western China participated and moderated mediation analysis was utilised. PNW was negatively associated with depressive symptoms, and SOC mediated the focal association.
View Article and Find Full Text PDFImpact of blood flow restriction intensity on pain perception and muscle recovery post-eccentric exercise.
Clin Physiol Funct Imaging
January 2025
Faculty of Health Sciences, Division of Physiotherapy and Rehabilitation, Istanbul Okan University, Istanbul, Turkey.
Background: Delayed onset muscle soreness (DOMS) is a well-established phenomenon characterized by ultrastructural muscle damage that typically develops following unfamiliar or high-intensity exercise. DOMS manifests with a constellation of symptoms, including muscle tenderness, stiffness, edema, mechanical hyperalgesia, and a reduced range of joint motion. In recent years, the application of blood flow restriction (BFR) has garnered attention for its potential impact on DOMS.
View Article and Find Full Text PDFHumidity-Sensing and Moisture-Steering Liquid Crystal Elastomer Actuator.
Small
December 2024
Département de chimie, Université de Sherbrooke, Sherbrooke, QC, J1K 2R1, Canada.
A liquid crystal elastomer (LCE) actuator capable of colorimetric humidity sensing is realized. The designed LCE features acid protonated amino azobenzene side groups in its structure, which endow the actuator with the hygroscopicity and act as the humidity reporter via color changes. Given that the protonated and deprotonated chromophore absorb visible light at different wavelengths, when the protonated LCE is under higher humidity, it absorbs more water that deprotonates azobenzene and leads to a change in color.
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