Now showing 1 - 10 of 18
  • Publication
    Open Access
    Longitudinal relations of emotion knowledge to psychosocial adjustment in European and Chinese American school-age children.
    (Wiley, 2023) ;
    Wang, Qi
    The study is the first to examine the developmental trajectory of emotion knowledge as it relates to psychosocial adjustment in a cross-cultural context. European American (EA, n = 68, 28 boys) and Chinese American (CA, n = 62, 31 boys) children and their mothers participated. Children's emotion knowledge was assessed, and their psychosocial adjustment was reported by mothers at three time points when children were 6.5, 7, and 8 years of age. Although EA children had greater emotion knowledge at Time 1, CA children's emotion knowledge grew faster over the following 1.5 years. In addition, emotion knowledge predicted fewer internalizing problems in CA children but predicted fewer externalizing problems in EA children. Thus, emotion knowledge was associated with psychosocial adjustment for both cultural groups, and particularly helpful for children to cope with issues to which they are most vulnerable in their respective cultural contexts. The findings shed critical light on the developmental trajectories of emotion understanding and psychosocial adjustment in specific cultural contexts.
    WOS© Citations 1Scopus© Citations 2  50  84
  • Publication
    Metadata only
    Distinctiveness and uniformity: Teaching language in Singapore primary grades 1 & 2
    (Springer, 2016) ;
    Curdt-Christiansen, Xiao Lan
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    ; ;
    This chapter presents data from a study of primary grade 1 and grade 2 (P1 and P2) lessons for Chinese, English, Malay and Tamil. There are few, if any, comparative studies which examine pedagogy in all four official languages in Singapore; therefore, our primary purpose is to investigate how classroom teaching is similar or different for the four languages. For this investigation, data are drawn from 62 lessons observed in 2009 after new language syllabi were introduced. Despite a continuing policy of maintaining separate teaching teams, materials, syllabi/curricula and teacher training for each language, many of the policies for language and education apply across all four languages. These include recent emphases on oral skill development, recommendations that schools develop more engaging pedagogies for young learners and common policies on assessment. Our data show that teaching across the four languages is remarkably similar, which we take to be evidence of the impact of the common policies and cultural beliefs about language education in Singapore primary schools.
    WOS© Citations 2  37
  • Publication
    Open Access
    Rational-design of polyaniline cathode using proton doping strategy by graphene oxide for enhanced aqueous zinc-ion batteries
    (Elsevier, 2020)
    Du, Wencheng
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    Xiao, Jinfei
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    Geng, Hongbo
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    Zhang, Yufei
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    Ye, Minghui
    ;
    Li, Cheng Chao
    Aqueous zinc-ion batteries (ZIBs) have been of excellent interest in the latest years due to their environmental benignity and easy preparation. One vital barrier to the production of high-performance ZIBs is the development of appropriate cathode materials. Polyaniline (PANI) is very promising, particularly due to its excellent conductivity and easy preparation, among varied cathode materials. However, deprotonation of PANI is a key problem greatly deteriorating capacity and cycling stability of PANI cathode. In this study, we discover that graphene oxide (GO) can fix the problem effectively as the wealthy functional GO oxygen groups can provide a local proton reservoir that increases PANI protonation. As a result, the GO composited PANI electrodes show significantly improved zinc-ion storage performance than pure carbon composited PANI cathodes. Specifically, the battery performances in terms of capacity (233 mA h g−1) and rate performance (100 mA h g−1 under 5 A g−1) are enhanced significantly after introducing GO into PANI cathode. Besides, flexible PANI-based ZIB devices can be easily fabricated owing to the excellent film-forming property of GO. This work offers new insight for improving PANI cathode materials by carbon chemistry.
    WOS© Citations 64Scopus© Citations 89  167  233
  • Publication
    Open Access
    Maternal reactions to children’s negative emotions: Relations to children's socio-emotional development among European American and Chinese immigrant children
    (Sage, 2020) ;
    Song, Qingfang
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    Doan, Stacey N.
    ;
    Wang, Qi
    This study examined the relations between maternal reactions to children’s negative emotions and children’s socio-emotional outcomes, including psychological adjustment, emotion knowledge, and coping strategies. European American and Chinese immigrant mothers reported on their reactions to children’s (N = 117, M = 7.14 years) negative emotions and on children’s psychological adjustment. One year later, children were interviewed for emotion knowledge and mothers reported on children’s use of coping strategies. Mothers from the two cultural groups reported the same level of supportive reactions to their children’s negative emotions, whereas Chinese immigrant mothers more often adopted what are commonly considered to be non-supportive strategies than did European American mothers. Whereas supportive maternal reactions were associated with better child outcomes in both cultures, maternal non-supportive reactions were negatively associated with children’s functioning for European American children but not for Chinese immigrant children. The findings shed critical light on the functional meaning of parenting practices in specific cultural contexts in shaping developmental outcomes.
    WOS© Citations 19Scopus© Citations 24  148  254
  • Publication
    Open Access
    Importance of emotion understanding on academic outcomes
    (National Institute of Education, Nanyang Technological University (NIE NTU), Singapore, 2024) ;
    Adelia, Kelly
      71  481
  • Publication
    Open Access
    A 1D–3D interconnected δ-MnO2 nanowires network as high-performance and high energy efficiency cathode material for aqueous zinc-ion batteries
    (Elsevier, 2021)
    Liu, Dao-Sheng
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    Mai, Yinglin
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    Chen, Shufeng
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    Liu, Sucheng
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    Ye, Minghui
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    Zhang, Yufei
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    Geng, Hongbo
    ;
    Li, Cheng Chao
    Aqueous zinc‐ion batteries (AZIBs) have received significant research attention and widely investigated because of their high intrinsic safety and cost effectiveness. Manganese dioxide has been regarded as a promising cathode material for AZIBs, attributed to its friendliness, abundant resources, high theoretical capacity, and high working voltage. Herein, a unique one-dimensional–three-dimensional (1D–3D) hybrid network with interconnected δ-MnO2 nanowires was reported as a cathode material for AZIBs. A distinctive 3D nano network structure resulted in enhancement of electrolyte osmosis and significant increase in contact between electrode and electrolyte, and also provided more active sites and convenient rapid ion transport routes. Moreover, the fine nanowire structure and the optimum layer spacing resulted in easier insertion/deinsertion of ion in the active material. Taking advantage of this feature, the δ-MnO2 cathode provides high reversible capacity, fast rate capability and good longevity for cycling. Further kinetic experiments revealed that Zn/δ‐MnO2 system constitutes an electrochemical reaction regulated by the combination of ionic diffusion and pseudo-capacitance; and shows high energy efficiency during the charge/discharge states. This research may provide an advanced cathode material for AZIB development.
    WOS© Citations 47Scopus© Citations 62  194  206
  • Publication
    Open Access
    Interlayer engineering of molybdenum trioxide toward high-capacity and stable sodium ion half/full batteries
    (Wiley, 2020)
    Wang, Bo
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    ; ;
    Zhang, Yufei
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    Geng, Hongbo
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    Ye, Minghui
    ;
    Li, Cheng Chao
    Orthorhombic molybdenum trioxide (MoO3) is one of the most promising anode materials for sodium‐ion batteries because of its rich chemistry associated with multiple valence states and intriguing layered structure. However, MoO3 still suffers from the low rate capability and poor cycle induced by pulverization during de/sodiation. An ingenious two‐step synthesis strategy to fine tune the layer structure of MoO3 targeting stable and fast sodium ionic diffusion channels is reported here. By integrating partially reduction and organic molecule intercalation methodologies, the interlayer spacing of MoO3 is remarkably enlarged to 10.40 Å and the layer structural integration are reinforced by dimercapto groups of bismuththiol molecules. Comprehensive characterizations and density functional theory calculations prove that the intercalated bismuththiol (DMcT) molecules substantially enhanced electronic conductivity and effectively shield the electrostatic interaction between Na+ and the MoO3 host by conjugated double bond, resulting in improved Na+ insertion/extraction kinetics. Benefiting from these features, the newly devised layered MoO3 electrode achieves excellent long‐term cycling stability and outstanding rate performance. These achievements are of vital significance for the preparation of sodium‐ion battery anode materials with high‐rate capability and long cycling life using intercalation chemistry.
    WOS© Citations 55Scopus© Citations 71  348  368
  • Publication
    Metadata only
    COVID-19, family dynamics, and perceived mental health among families in Singapore
    (Springer, 2023) ;
    Chua, Jallene Jia En
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    ;

    The COVID-19 pandemic presents a significant challenge to the well-being of families with children. Although previous studies have documented COVID-related deterioration in parents’ mental health, the underlying mechanisms remain unclear. It is also unclear how much of the deterioration is due to the pandemic itself, versus mandated lockdown measures. We conducted a cross-sectional study in Singapore to examine perceived changes in parents’ lives and mental health related to the pandemic and lockdown measures. In June 2020, when Singapore had just exited a nationwide lockdown, we asked families to retrospectively report on the family dynamics, daily activities, and mental health of family members during the phases before local transmission (Pre-pandemic), during local transmission but before the lockdown (Pre-lockdown), and during the lockdown (Lockdown). Results from 180 mothers and 166 fathers from 198 families showed significant changes in jobs and income, childcare arrangements, family dynamics, and parents’ perceived mental health across the three timepoints. Mothers’ increased time spent on housework was associated with the increase in their mental health problems from Pre-lockdown to Lockdown. Parents’ increased conflict with other adults in the household was associated with the increase in their mental health problems from Pre-pandemic to Pre-lockdown, and from Pre-lockdown to Lockdown. Mental health problems increased more for young mothers, parents with a graduate or professional degree, and fathers high on authoritarian values. Findings suggest that both the pandemic and the imposed lockdown measures impact parents’ lives and family dynamics, in turn leading to deterioration in parents’ mental health.

      18
  • Publication
    Metadata only
    Master your feelings: Emotional competence in early childhood parent-related antecedents and child outcomes
    (Springer, 2022)
    Tsotsi, Stella
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    Both researchers and practitioners increasingly realize that socioemotional competence is important to many child developmental outcomes. In this chapter, we first describe three major components of children’s emotional competence: emotion understanding, emotion regulation, and empathy. Then, we discuss emotional competence’s (1) typical development; (2) relation with other child outcomes, such as social competence, internalizing and externalizing problems, and education, internationally and within Singapore; and (3) variance as a function of parent-related factors, including parental mental health, parents’ sensitive caregiving, parent-child attachment, parent-child conversations, parental reactions to children’s emotions, and parenting styles and practices. The importance and need for more studies on children’s emotional competence in Singapore are discussed. Toward the end of the chapter, we provide tips for parents and teachers in an effort to help them promote emotional competence in their children and students.
      88
  • Publication
    Open Access
    An advanced cathode composite design for co-utilization of cations and anions in lithium batteries
    (Elsevier, 2021)
    Wang, Xiao-Tong
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    Guo, Jin-Zhi
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    Gu, Zhen-Yi
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    Sun, Zhong-Hui
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    Li, Wen-Hao
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    Liang, Hao-Jie
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    Wu, Xing-Long
    Anions in the electrolyte are usually ignored in conventional "rocking-chair" batteries because only cationic de-/intercalation is considered. An ingenious scheme combining LiMn0.7Fe0.3PO4 (LMFP@C) and graphite as a hybrid cathode for lithium-ion batteries (LIBs) is elaborately designed in order to exploit the potential value of anions for battery performance. The hybrid cathode has a higher conductivity and energy density than any of the individual components, allowing for the co-utilization of cations and anions through the de-/intercalation of Li+ and PF6− over a wide voltage range. The optimal compound with a weight mix ratio of LMFP@C: graphite= 5: 1 can deliver the highest specific capacity of nearly 140 mA h/g at 0.1 C and the highest voltage plateau of around 4.95 V by adjusting the appropriate mixing ratio. In addition, cyclic voltammetry was used to investigate the electrode kinetics of Li+ and PF6- diffusion in the hybrid compound at various scan rates. In situ X-ray diffraction is also performed to further demonstrate the structural evolution of the hybrid cathode during the charge/discharge process.
    WOS© Citations 67Scopus© Citations 96  376  81