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Posture-invariant myoelectric control with self-calibrating random forests.
Front Neurorobot
December 2024
School of Informatics, The University of Edinburgh, Edinburgh, United Kingdom.
Introduction: Myoelectric control systems translate different patterns of electromyographic (EMG) signals into the control commands of diverse human-machine interfaces via hand gesture recognition, enabling intuitive control of prosthesis and immersive interactions in the metaverse. The effect of arm position is a confounding factor leading to the variability of EMG characteristics. Developing a model with its characteristics and performance invariant across postures, could largely promote the translation of myoelectric control into real world practice.
View Article and Find Full Text PDFFirst report of leaf brown spot caused by on in China.
Plant Dis
December 2024
South Shaoshan Road 498#Changsha, China, 410004;
Article Synopsis
- Lithocarpus polystachyus, known as 'sweat tea,' is an important tree in China whose leaves are beneficial for diabetes treatment due to their high dihydrochalcone content.
- In January 2024, a significant disease outbreak was reported on these trees in Hunan Province, affecting about 74% of surveyed plants, with symptoms evolving from small yellow lesions to large brown patches and ultimately leaf necrosis.
- Pathogen isolation methods revealed that the fungus responsible for the disease was identified as Diaporthe sp., confirmed by examining colony characteristics and genomic DNA analysis.
Water absorption properties of graphene nanoplatelets filled bamboo/kenaf reinforced polylactic acid hybrid composites.
Int J Biol Macromol
December 2024
Advanced Engineering Materials and Composites Research Centre, Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia; Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM Serdang, 43400, Selangor, Malaysia.
Environmental issues have resulted in the forming of sustainable materials, including natural fiber-reinforced PLA composites; nonetheless, this composite has low water resistance, resulting in poor composite performance. This research aims to investigate the impact of adding a small amount of graphene nanoplatelets (GNP) on the water absorption (WA) characteristic of bamboo/kenaf-reinforced PLA hybrid composites. The physical behavior and water resistance of the composites, as well as the mechanical performance and surface after 14 days of immersion, were comprehensively investigated.
View Article and Find Full Text PDFExamining the Use of Virtual Reality to Support Mindfulness Skills Practice in Mood and Anxiety Disorders: Mixed Methods Study.
J Med Internet Res
December 2024
Centre for Mental Health and Brain Sciences, Swinburne University of Technology, Hawthorn, VIC, Australia.
Background: Virtual reality (VR) has been proposed as a technology to support mindfulness practice through promoting increased engagement and presence. The proposed benefits of this technology have been largely unexamined with clinical populations. Further research is required to understand its clinical potential and utility in improving and managing mental health symptoms.
View Article and Find Full Text PDFVirtual reality-enabled high-performance emotion estimation with the most significant channel pairs.
Heliyon
October 2024
Department of Computer Engineering, Erzurum Technical University, Erzurum, 25050, Turkey.
Human-computer interface (HCI) and electroencephalogram (EEG) signals are widely used in user experience (UX) interface designs to provide immersive interactions with the user. In the context of UX, EEG signals can be used within a metaverse system to assess user engagement, attention, emotional responses, or mental workload. By analyzing EEG signals, system designers can tailor the virtual environment, content, or interactions in real time to optimize UX, improve immersion, and personalize interactions.
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