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  1. Lyu S, Zhang W
    Front Psychol, 2025;16:1511559.
    PMID: 40045973 DOI: 10.3389/fpsyg.2025.1511559
    BACKGROUND: The promotional effects of physical exercise on children's attention and social-emotional skills have been widely confirmed. However, the advantages of open physical games in intervention effects still need further exploration. Therefore, this study discusses the intervention effects of open physical games on children's attention and social-emotional skills.

    METHODS: This study adopted a quasi-experimental design. Two administrative classes were divided into the experimental group (15 boys and 16 girls) and the control group (16 boys and 15 girls) using the coin-toss method. The intervention intensity was moderate (60-69% of HRmax), lasting for 12 weeks, with 3 sessions per week, each lasting 40 min. Both groups focused on the teaching of fundamental motor skills (FMS). The experimental group was intervened with open physical games, while the control group was intervened with closed physical games. The Adolescent Attention Test was used to measure attention quality; the Children's Social and Emotional Skills Scale was used to measure social-emotional skills; the Test of Gross Motor Development-Third Edition was used to measure locomotors and manipulative skills; and the Fundamental Movement Skill Development Test for Children Aged 3 to 10 was used to measure stability skills. Based on SPSS 25.0 and GraphPad Prism 8 software, statistical analysis was conducted using independent samples t-tests, χ2 tests, MANOVA, and Pearson partial correlation analysis.

    RESULTS: After the intervention, open physical games had a more positive effect on children's attention distribution (F = 6.223, p = 0.022, η 2 = 0.090). Open physical games had a more positive effect on children's self-awareness (F = 11.027, p = 0.002, η 2 = 0.165), others' awareness (F = 10.315, p = 0.002, η2 = 0.156), collective awareness (F = 6.494, p = 0.014, η 2 = 0.104), collective management (F = 12.108, p = 0.001, η 2 = 0.178), and overall social-emotional skills (F = 38.453, p

  2. Lyu S, Abidin ZZ, Yaw TCS, Resul MFMG
    Environ Sci Pollut Res Int, 2024 Mar;31(11):16940-16957.
    PMID: 38326685 DOI: 10.1007/s11356-024-32323-z
    The applications of polysulfides derived from natural plant oil and sulfur via the inverse vulcanization in the removal of heavy metals from aqueous solutions suffered from their low porosity and scarce surface functionality because of their hydrophobic surfaces and bulk characteristics. In this study, polysulfides from sulfur and palm oil (PSPs) with significantly enhanced porosity (13.7-24.1 m2/g) and surface oxygen-containing functional groups (6.9-8.6 wt.%) were synthesized with the optimization of process conditions including reaction time, temperature, and mass ratios of sulfur/palm oil/NaCl/sodium citrate. PSPs were applied as sorbents to remove heavy metals present in aqueous solutions. The integration of porosity and oxygen modification allowed a fast kinetic (4.0 h) and enhanced maximum sorption capacities for Pb(II) (218.5 mg/g), Cu(II) (74.8 mg/g), and Cr(III) (68.4 mg/g) at pH 5.0 and T 298 K comparing with polysulfides made without NaCl/sodium citrate. The sorption behaviors of Pb(II), Cu(II), and Cr(III) on PSPs were highly dependent on the solution pH values and ionic strength. The sorption presented excellent anti-interference capability for the coexisting cations and anions. The sorption processes were endothermic and spontaneous. This work would guide the preparation of porous polysulfides with surface modification as efficient sorbents to remediate heavy metals from aqueous solutions.
  3. Lyu S, Abidin ZZ, Yaw TCS, Resul MFMG
    Environ Sci Pollut Res Int, 2024 Apr;31(20):29264-29279.
    PMID: 38573576 DOI: 10.1007/s11356-024-33152-w
    Guided by efficient utilization of natural plant oil and sulfur as low-cost sorbents, it is desired to tailor the porosity and composition of polysulfides to achieve their optimal applications in the management of aquatic heavy metal pollution. In this study, polysulfides derived from soybean oil and sulfur (PSSs) with improved porosity (10.2-22.9 m2/g) and surface oxygen content (3.1-7.0 wt.%) were prepared with respect to reaction time of 60 min, reaction temperature of 170 °C, and mass ratios of sulfur/soybean oil/NaCl/sodium citrate of 1:1:3:2. The sorption behaviors of PSSs under various hydrochemical conditions such as contact time, pH, ionic strength, coexisting cations and anions, temperature were systematically investigated. PSSs presented a fast sorption kinetic (5.0 h) and obviously improved maximum sorption capacities for Pb(II) (180.5 mg/g), Cu(II) (49.4 mg/g), and Cr(III) (37.0 mg/g) at pH 5.0 and T 298 K, in comparison with polymers made without NaCl/sodium citrate. This study provided a valuable reference for the facile preparation of functional polysulfides as well as a meaningful option for the removal of aquatic heavy metals.
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