Publications by authors named "Xiaofang Yuan"

Flupyrimin (FLP) is a novel class of insecticide acting on insect nicotinic acetylcholine receptor (nAChR) and shows robust insecticidal activity. However, the toxicological effects of FLP on Spodoptera litura have not been revealed. In this study, the results showed that the larval survival rate decreased significantly with increasing concentration of FLP.

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  • This study explored how different takeover request (TOR) timings and warning methods affect driver performance and trust in automated vehicles during a driving simulation on urban roads.
  • Results showed that longer TOR times improved trust in the system, while collisions negatively impacted that trust; however, the number of warning methods didn’t significantly influence trust levels.
  • The findings aim to assist automotive designers in enhancing driver confidence toward automated systems by providing insights on effective TOR times and warning strategies.
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  • - The study focuses on the insect cuticle, which is essential for protection and moisture retention in insects, and identifies a key cuticular protein (DcCP8) in the pest Diaphorina citri.
  • - DcCP8 plays a crucial role in exocuticle formation and when silenced, it disrupts the insect's metamorphosis and increases cuticle permeability, impacting its development.
  • - A new RNA interference technique using nanoparticles targeting DcCP8 showed potential for increasing mortality in Diaphorina citri, suggesting a promising pest control strategy based on dsRNA technology.
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Purpose: To preliminarily investigate the reliability and validity of the Chinese version of the Cerebellar Cognitive Affective Syndrome Scale (CCAS scale) in the cerebellar injury population.

Methods: In this study, 40 patients with cerebellar injury and 39 normal individuals hospitalized in a stroke center were assessed using the Chinese version of the CCAS scale A, MMSE, and PHQ2, and the results were analyzed using content validity, structural validity, internal consistency, inter- rater agreement, and test-retest reliability.

Results: The correlation coefficients of semantic fluency, phonemic fluency, category switching, digit span forward, digit span backward, cube, verbal recall, similarities and Go No-Go subscores in the Chinese version of the CCAS scale A were 0.

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  • Autonomous vehicles face major challenges in effectively planning safe paths in environments with dynamic obstacles that have varying speeds.
  • The study introduces a new method called HSPI-OAM, which focuses on creating smooth, collision-free paths without needing specific parameter adjustments.
  • Simulations conducted on the Matlab-Carsim platform demonstrate that HSPI-OAM performs well in navigating around obstacles that accelerate.
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The remarkable characteristics of porous biochar have generated significant interest in various fields, such as CO capture and supercapacitors. The modification of aerogel-derived porous biochar through activation and heteroatomic doping can effectively enhance CO adsorption and improve supercapacitor performance. In this study, a novel N, B-co-doped porous biochar (NBCPB) was synthesized by carbonating and activating the N, B dual-doped cellulose aerogel.

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Significant spatial variability of groundwater arsenic (As) concentrations in South/Southeast Asia is closely associated with sedimentogenesis and biogeochemical cycling processes. However, the role of fine-scale differences in biogeochemical processes under similar sedimentological environments in controlling the spatial heterogeneity of groundwater As concentrations is poorly understood. Within the central Yangtze Basin, dissolved organic matter (DOM) and microbial functional communities in the groundwater and solid-phase As-Fe speciation in Jianghan Plain (JHP) and Jiangbei Plain (JBP) were compared to reveal mechanisms related to the spatial heterogeneity of groundwater As concentration.

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Organoiodine compounds (OICs) are the dominant iodine species in groundwater systems. However, molecular mechanisms underlying the geochemical formation of geogenic OICs-contaminated groundwater remain unclear. Based upon multitarget field monitoring in combination with ultrahigh-resolution molecular characterization of organic components for alluvial-lacustrine aquifers, we identified a total of 939 OICs in groundwater under reducing and circumneutral pH conditions.

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The structural characteristics of photonic crystal fibers (PCFs) determine their optical properties. This paper introduces an enhanced Grey Wolf Optimization algorithm termed ACD-GWO, which proposes adaptive strategies, chaotic mapping and dimension-based approaches and integrates them into the Grey Wolf Optimization framework. The aim is to achieve efficient automatic adjustment of hyperparameters and architecture for ensemble neural networks.

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When the autonomous vehicle (AV) is under various road friction and speed, emergency collision avoidance is extremely difficult. In this situation, the AV may encounter severe understeering problem, so it is hard to achieve collision avoidance, even under the control of active safety system. To tackle this problem, an adaptive collision avoidance strategy (ACAS) is proposed for AV under various road friction and speed.

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To explore the influence of the construction and presentation frames of visualization information for safety (VIS) on people's situation awareness (SA), we designed a three-level user interface (UI) of VIS based on the three-stage SA theory, including perception (SA1), comprehension (SA2), and projection (SA3). Then, 166 subjects were recruited and divided into three groups to participate in the experiment, in which SA was measured by the situation-present-assessment method (SPAM) and situation-awareness-rating technique (SART), and eye-movement data were recorded. The results show that the level-3 UI design could effectively improve the subjects' SA levels.

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Introduction: Choosing to only retrieve and read academic information related to their own research field is conducive to researchers' in-depth understanding of their own research issues, and also reduces the pressure of researchers' information retrieval, but may bring about the effect of information cocoon.

Methods: Based on the information ecology theory, a theoretical model is built from the aspects of information people, information, information environment and information technology, and relevant data is collected through questionnaires to verify assumptions. To explore the formation path of information cocoon for scientific researchers and the differences between different types of scientific researchers.

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Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with multi-organ inflammation and defect, which is linked to many molecule mediators. Oxylipins as a class of lipid mediator have not been broadly investigated in SLE. Here, we applied targeted mass spectrometry analysis to screen the alteration of oxylipins in serum of 98 SLE patients and 106 healthy controls.

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Recently, social Q&A communities have grown increasingly popular, serving as a primary platform for people to learn and share information. Nonetheless, fewer knowledge producers in these communities are significant than knowledge consumers. Thus, promoting users' participation in knowledge sharing is a challenge for managers of social Q&A communities.

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Intelligent mines require much more mental effort from visual display terminal (VDT) operators. Long periods of mental effort can easily result in operator fatigue, which further increases the possibility of operation error. Therefore, research into how brain fatigue affects the sustained attention of VDT operators in intelligent mines is important.

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Objectives: To compare the sensitivity and specificity of the Saint Louis University Mental Status (SLUMS) examination, the Montreal Cognitive Assessment (MoCA) and the Mini-Mental State Examination (MMSE) in adults with moderate to severe traumatic brain injury (TBI).

Methods: In this cross-sectional study, 98 patients with moderate to severe TBI and 30 matched controls were evaluated. All participants were assessed using the MMSE, the MoCA and the SLUMS examination.

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Objective: The purpose of this study was to investigate the influence of education level on MMSE and MoCA scores of elderly inpatients.

Method: This is a cross-sectional study. A total of 260 elderly inpatients were evaluated by the MMSE and MoCA sequentially.

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Article Synopsis
  • The study assessed the validity and reliability of the Mandarin Chinese version of the Brief Assessment of Impaired Cognition (BASIC) scale for stroke patients, translating it from English and testing it on 56 individuals.
  • Various validation metrics were used, including content, structural, and concurrent validity, along with assessing internal consistency and reliability through coefficients, which showed strong correlations and good structural validity.
  • Findings indicate that the Chinese BASIC scale is a reliable tool for screening cognitive dysfunction or dementia following a stroke, supporting its use in clinical settings.
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Path planning is a basic function for autonomous vehicle (AV). However, it is difficult to adapt to different velocities and different types of obstacles including dynamic obstacle and static obstacle (such as road boundary) for AV. To solve the problem of path planning under different velocities and different types of obstacles, a two potential fields fused adaptive path planning system (TPFF-APPS) which includes two parts, a potential field fusion controller and an adaptive weight assignment unit, is presented in this work.

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Global warming has gradually reduced the control efficacy of against the invasive weed . To better understand the summer collapse of populations, we cloned the cDNA sequences of the high temperature-sensing , , and from , and analyzed their temporal expressions and the impacts of high temperatures on their expression in eggs, the most vulnerable stage of to hot temperatures. All the three genes obtained had the signature domains of TRPA channels and were constitutively expressed in eggs, larvae (L1, L2, L3), pupae, and adults, but had the highest expression, followed by , and .

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Distributed driver electric vehicle (DDEV) works under various road excitations in practice, which may cause the changes in steering performance significantly. However, the various road excitations are not a priority for stable steering problem of DDEV, and this possibly leads to unstable steering performance, particularly oversteer or tail flick. To solve this problem, an interacting multiple model-based adaptive control system (IMM-ACS) is presented in this work.

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Background: Bone mesenchymal stromal cells (BMSC) showed protective potential against intestinal ischemia. Oxygenase-1(HO-1) could alleviate oxidative stress. In the present study, we constructed HO-1-expressing BMSC and detected the effects of it on survival, intestinal injury and inflammation following intestinal ischemia and reperfusion injury (I/R).

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Background: Stem cell therapy has been increasingly used in the treatment of sepsis-associated acute kidney injury (AKI). Engineering stem cells, through genetic method, for optimized therapeutic outcome is a desirable strategy, which requires clear understanding of molecular mechanism underlying the interaction between stem cells and damaged kidney. The aim of this study is to evaluate the therapeutic effects of HO-1 overexpressed mesenchymal stem cells (MSCs) in AKI and investigate the role of JAK/stat3 pathway in the treatment strategy.

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Agasicles hygrophila has been introduced worldwide as a control agent for the invasive weed Alternanthera philoxeroides. However, global warming has potential impact on its controlling efficacy. The aim of this research was to explore the primary factors responsible for the greatly reduced A.

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The alligator weed flea beetle, Agasicles hygrophila Selman & Vogt (Coleoptera: Chrysomelidae) has been used very successfully for the biological control of the widely-distributed invasive weed Alternanthera philoxeroides (Mart.) Griseb (Caryophyllales: Amaranthaceae). In order to extend the 'shelf life' of natural enemies released in biological control programs, cold storage has proven to be a valuable commercial procedure.

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