[Enhancement algorithm for surface electromyographic-based gesture recognition based on real-time fusion of muscle fatigue features].

This study aims to optimize surface electromyography-based gesture recognition technique, focusing on the impact of muscle fatigue on the recognition performance. An innovative real-time analysis algorithm is proposed in the paper, which can extract muscle fatigue features in real time and fuse them into the hand gesture recognition process. Based on self-collected data, this paper applies algorithms such as convolutional neural networks and long short-term memory networks to provide an in-depth analysis of the feature extraction method of muscle fatigue, and compares the impact of muscle fatigue features on the performance of surface electromyography-based gesture recognition tasks.

Children's friendship stability in the United States, China, and Indonesia: Associations with individual attributes and dyadic similarity.

Predictors of friendship stability from individual attributes and dyadic similarities were assessed using cross-classified multilevel analyses in this 6- to 8-month longitudinal study of 10-year-old US (White, Black, Asian, other; n = 477, 50% girls), Chinese (n = 467, 59% girls), and Indonesian (Sudanese, Javanese, other; n = 419, 45% girls) children with complete participation and reciprocated baseline friendships. Across countries, individual attributes of social preference, popularity, and academic achievement and dyadic social preference similarity positively predicted friendship stability. Dyadic similarity of popularity, academic achievement, and aggression respectively predicted friendship stabilities of US, Chinese, and Indonesian children.

UNeXt: An Efficient Network for the Semantic Segmentation of High-Resolution Remote Sensing Images.

The application of deep neural networks for the semantic segmentation of remote sensing images is a significant research area within the field of the intelligent interpretation of remote sensing data. The semantic segmentation of remote sensing images holds great practical value in urban planning, disaster assessment, the estimation of carbon sinks, and other related fields. With the continuous advancement of remote sensing technology, the spatial resolution of remote sensing images is gradually increasing.

Coupling coordination degree and influencing factors of forestry modernization and high quality economic development: an empirical study from provincial panel in China.

Introduction: Forestry modernization (FM) and High quality economic development (HED) are two major goals that must be achieved in the process of economic development from low to high, and they are closely related to each other in their respective internal development mechanisms.

Methods: Based on the analysis of the coupling coordination mechanism between FM and HED, this paper empirically studies the coupling coordination degree and influencing factors of "forestry modernization and high quality economic development" ("FM-HED") using panel data from 30 provinces and cities in China (except Xizang, Hong Kong, Macao and Taiwan) from 2012 to 2020. First, the entropy method and the coupling coordination degree model were used to analyze the temporal changes and spatial differentiation of the coupling coordination between FM and HED.

Tailoring the Electronic Structure and Properties of Graphdiyne by Cyano Groups.

Two-dimensional (2D) materials, such as 2D carbon-based systems, have been recently the subject of intense studies, thanks to their optoelectronic properties and promising electronic performances. 2D carbon-based materials such as graphdiyne (GDY) represent an optimal platform for tuning the optoelectronic properties via precise chemical functionalization. Here, we report a synthetic strategy to precisely introduce cyano groups into the 2D GDY backbone in order to tune the electronic properties of GDY.

Surface coal mining in drylands: A multiscale comparison of spatiotemporal patterns and environmental impacts between Inner Mongolia and Mongolia.

Surface coal mining (SCM) poses a great threat to the environment. Previous studies have explored the speed and scale of SCM in the Mongolian Plateau, but landscape-based analysis is needed for creating actionable knowledge required for environmental policy-making. Thus, taking a landscape ecological approach, here we compared the spatiotemporal patterns and major environmental impacts of SCM between Inner Mongolia of China and Mongolia during 1975-2015 at multiple administrative levels.

Benzylpiperazinyl Derivatives of Alepterolic Acid: Synthesis and Cytotoxic Evaluation.

Natural products play a significant role in the development of modern drugs. Alepterolic acid, a labdane-type diterpenoid firstly isolated from Aleuritopteris argentea (Gmél.) Fée, has been identified as a valuable template for the synthesis of potent anticancer agents by structural modification.

The Residual Activity of Fatty Acyl-CoA Reductase Underlies Thermo-Sensitive Genic Male Sterility in Rice.

Photoperiod/thermo-sensitive genic male sterility (P/TGMS) is critical for rice two-line hybrid system. Previous studies showed that slow development of pollen is a general mechanism for sterility-to-fertility conversion of TGMS in Arabidopsis. However, whether this mechanism still exists in rice is unknown.

Explainable F-FDG PET/CT radiomics model for predicting EGFR mutation status in lung adenocarcinoma: a two-center study.

Purpose: To establish an explainable F-FDG PET/CT-derived prediction model to identify EGFR mutation status and subtypes (EGFR wild, EGFR-E19, and EGFR-E21) in lung adenocarcinoma (LUAD).

Methods: Baseline F-FDG PET/CT images of 478 patients with LUAD from 2 hospitals were collected. Data from hospital A (n = 390) was randomly split into a training group (n = 312) and an internal test group (n = 78), with data from hospital B (n = 88) utilized for external test.

The deep learning-based physical education course recommendation system under the internet of things.

This study aims to propose a deep learning (DL)-based physical education course recommendation system by combining the Internet of Things (IoT) technology and DL, to improve the accuracy and personalization of recommendation. Firstly, IoT devices such as smart bracelets and smart clothing are used to monitor students' physiological data in real-time, and IoT sensors are utilized to sense the environment around students. Secondly, IoT devices capture students' social interactions with their peers, recommending socially oriented courses.

Nutrient Addition Enhances the Temperature Sensitivity of Soil Carbon Decomposition Across Forest Ecosystems.

Atmospheric nitrogen (N) and phosphorus (P) depositions have been shown to alter nutrient availability in terrestrial ecosystems and thus largely influence soil carbon cycling processes. However, the general pattern of nutrient-induced changes in the temperature response of soil carbon decomposition is unknown. Yet, understanding this pattern is crucial in terms of its effect on soil carbon-climate feedback.

Design and implementation of the dual-center programming platform for ternary optical computer and electronic computer.

In order to utilize the advantages of optical computing and promote the application and popularization of Ternary Optical Computer (TOC), this paper proposes a dual-center programming model consisting of electronic processor and optical processor, presents the theory and technologies of the dual-center model in detail, and for the first time explains the SAN ZHI GUANG (SZG) file chain technology, gives the implementation method of the dual-center model. The model tries to effectively manage the resources of optical processor and solve the problem of the distance and network connection mode of using the TOC. Experimental results show that the dual-center model is correct and the implementation method is feasible.

Resonance and beat perception of ballroom dancers: An EEG study.

Purpose: The ability to synchronize the perceptual and motor systems is important for full motor coordination and the core determinant of motor skill performance. Dance-related training has been found to effectively improve sensorimotor synchronization, however, the underlying characteristics behind these improvements still warrant further exploration. This study was conducted to investigate the behavioral and neuroactivity characteristics of ballroom dancers relative to those of non-dancers.

Parental control and bullying: Variable-centered and person-centered approaches.

Previous research has established a connection between parental control and bullying. However, the nuanced relationships involving different combinations of psychological control (PPC) and behavioral control (PBC), along with traditional and cyberbullying, remain ambiguous. Thus, this study investigated the associations of specific parental control dimensions and profiles with traditional and cyberbullying, focusing on the potential mediating mechanism of moral disengagement.

The pathogen-induced peptide CEP14 is perceived by the receptor-like kinase CEPR2 to promote systemic disease resistance in Arabidopsis.

Secreted plant peptides that trigger cellular signaling are crucial for plant growth, development, and adaptive responses to environmental stresses. In Arabidopsis (Arabidopsis thaliana), the C-TERMINALLY ENCODED PEPTIDE (CEP) family is a class of secreted signaling peptides that is phylogenetically divided into 2 groups: group I (CEP1-CEP12) and group II (CEP13-CEP15). Several group I CEP peptides regulate root architecture and nitrogen starvation responses, whereas the biological activity and roles of group II CEPs remain unknown.

Turn-On Fluorescence Probe for Cancer-Related -Glutamyltranspeptidase Detection.

The design and development of fluorescent materials for detecting cancer-related enzymes are crucial for cancer diagnosis and treatment. Herein, we present a substituted rhodamine derivative for the chromogenic and fluorogenic detection of the cancer-relevant enzyme -glutamyltranspeptidase (GGT). Initially, the probe is non-chromic and non-emissive due to its spirolactam form, which hinders extensive electronic delocalization over broader pathway.

Photo-Triggered Fluorescence Polyelectrolyte Nanoassemblies: Manipulate and Boost Singlet Oxygen in Photodynamic Therapy.

Photodynamic therapy (PDT) is a clinically approved therapeutic modality that has shown great potential for cancer treatment. However, there exist two major problems hindering PDT applications: the nonspecific phototoxicity requiring patients to stay in dark post-PDT, and the limited photodynamic efficiency. Herein, we report a photo-triggered porphyrin polyelectrolyte nanoassembling (photo-triggered PPN) strategy, in which porphyrin photosensitizer and photoswitchable energy accepter are assembled into polyelectrolyte micelles by a combined force of charge interaction and metal-ligand coordination.

Daily challenge-hindrance stress and work engagement in preschool teacher: the role of affect and mindfulness.

Background: The engagement of preschool teachers in their work is pivotal for maintaining teaching quality, ensuring teacher well-being, and fostering children's development. Despite its significance, there is limited knowledge regarding the daily fluctuations in work engagement and the underlying factors influencing it. This study, guided by the Job Demands-Resources model and Affect Event Theory, utilized an experience sampling methodology to investigate the impact of challenge and hindrance stressors on daily work engagement, as well as the mediating role of affect and the moderating effect of mindfulness.

Polymeric phenylpropanoid derivatives crosslinked by hydroxyl fatty acids form the core structure of rape sporopollenin.

Sporopollenin, a critical innovation in the evolution of terrestrial plants, is the core building brick for the outer wall of land-plant spores and pollen. Despite its significance, the basic structure of sporopollenin remains elusive due to its extreme chemical inertness. In this study, we used ethanolamine to completely dissolve rape sporopollenin and successfully identified a total of 22 components, including fatty acids, p-coumaric acid, sterols and polymeric phenylpropanoid derivatives.

Longitudinal Interactions between Problematic Internet Gaming and Symptoms of Depression Among University Students: Differentiating Anhedonia and Depressed Mood.

Background/objective: This study examines the interplay between problematic internet gaming (PIG) and depressive symptoms among university students, specifically anhedonia and depressed mood. Prior studies lacked distinction between these symptoms and had limited follow-ups.

Method: The three-wave longitudinal study analyzed data from 1,720 university students (with an average age of 20 years and 49 % being female) using a random intercept cross-lagged panel model, which distinguished between-person and within-person effects.