RESUMO
PURPOSE: The purpose of this study was to investigate the characteristics of family resilience in a sample of Chinese families with children diagnosed with chronic illness using Latent Profile Analysis (LPA). In particular, we examined the association of family resilience profiles with the psychosocial adjustment of children, and identified the socio-demographic correlates of these latent profiles. DESIGN AND METHODS: A cross-sectional study was conducted at comprehensive hospitals and children hospitals in three cities (Hangzhou, Ningbo and Wenzhou) of Zhejiang province, China. Parents (n = 277) of children diagnosed with a chronic illness completed a socio-demographic questionnaire, the Chinese version of the family resilience assessment scale, and the Strengths and Difficulties Questionnaire. RESULTS: A three-class solution was found to demonstrate the best fit [low family resilience (74.7%), moderate family resilience (14.1%), and high family resilience (11.2%)]. One-way ANOVA revealed significant differences between the three groups with respect to peer relationship problems and pro-social behaviors of children. On multinomial logistic regression analysis, the type of childhood chronic disease, time since diagnosis, family monthly income, medical insurance, and parents employment status significantly predicted the profile membership. CONCLUSION: Inadequate family resilience was found to be a common phenomenon in families with children affected by chronic illness. Family resilience profiles were associated with psychological adjustment of children. PRACTICE IMPLICATION: Our findings may help inform tailored family-strength based interventions to promote better psychosocial adjustment of children with chronic illness.
Assuntos
Saúde da Família , Resiliência Psicológica , Criança , Doença Crônica , Estudos Transversais , Humanos , PaisRESUMO
Although transition metal-based anodes for batteries are preferred owing to their higher energy density, the potential for structural collapse due to volume expansion has hindered their development. Herein, a simulated cellular structured anode composed of uniform nanoparticles and wrapped polydopamine is designed to direct the electronic/ionic diffusion channel and effectively address the volume expansion problem. The controlled-release effects of the polymer between the nano-interface protect the three-dimensional (3D) structures from collapsing during the electrochemical process. The constructed conductive networks along the NiO nanoparticle configurations effectively induce the transfer path and further accelerate the diffusion rate. Furthermore, interstitial filling unlocks the inactive component and triggers the deep delivery of electrons, which boosts battery performance. Therefore, the 3D structured PDA@NiO@G anode prepared from a recycled graphite conductive substrate exhibits excellent specific capacity (500 mAh g-1 at 0.1 A g-1) and significantly improved long-cycle performance (402 mAh g-1 after 500 cycles at 0.5 A g-1). The structure modulation strategy provides meaningful insight into transition metal anodes for the fabrication of high kinetics and prolonged life lithium-ion batteries, as well as the reuse of the spent graphite anode.
RESUMO
Dendrite formation severely compromises further development of zinc ion batteries. Increasing the nucleation overpotential plays a crucial role in achieving uniform deposition of metal ions. However, this strategy has not yet attracted enough attention from researchers to our knowledge. Here, we propose that thermodynamic nucleation overpotential of Zn deposition can be boosted through complexing agent and select sodium L-tartrate (Na-L) as example. Theoretical and experimental characterization reveals L-tartrate anion can partially replace H2O in the solvation sheath of Zn2+, increasing de-solvation energy. Concurrently, the Na+ could absorb on the surface of Zn anode preferentially to inhibit the deposition of Zn2+ aggregation. In consequence, the overpotential of Zn deposition could increase from 32.2 to 45.1 mV with the help of Na-L. The Zn-Zn cell could achieve a Zn utilization rate of 80% at areal capacity of 20 mAh cm-2. Zn-LiMn2O4 full cell with Na-L additive delivers improved stability than that with blank electrolyte. This study also provides insight into the regulation of nucleation overpotential to achieve homogeneous Zn deposition.