.
Background Smartphone addiction is a behavioral health issue prevalent worldwide, especially among adolescents. Although the Smartphone Addiction Inventory (SPAI) is commonly used, its psychometric characteristics have not been determined among Arab adolescents. This study examined the psychometric characteristics of the SPAI among Jordanian adolescents, particularly its internal consistency, construct validity, and factor structure. Methods A cross-sectional survey involved 960 high school students aged 13–17years. Respondents were randomly assigned to two subsamples. Latent structure was tested using exploratory factor analysis (EFA, n=480) and model fit using confirmatory factor analysis (CFA, n=480). Internal consistency was evaluated using Cronbach's alpha and McDonald's omega. Convergent and discriminant validity were tested through average variance extracted (AVE), composite reliability (CR), and heterotrait-monotrait ratios (HTMT). Results EFA supported a four-factor structure comprising tolerance, withdrawal, compulsive behavior, and functional impairment. CFA indicated acceptable model fit, χ2(146)=288.73, CFI=0.943, TLI=0.933, RMSEA=0.045, and SRMR=0.041. AVE values were below the conventional threshold of 0.50 across all four domains, while HTMT ratios showed good discriminant validity. Conclusion The findings support the multidimensional structure of the SPAI-A and provide evidence of its psychometric properties among Jordanian adolescents. The SPAI-A may be useful for assessing problematic smartphone use; however, further research is needed to establish its clinical screening performance and applicability in pediatric nursing practice.
This paper reports on the structural, electronic, mechanical, optical, and thermodynamic properties of YCdXH6 (X = Mn, Tc) complex hydrides. The findings presented in this work are based on first-principles calculations. An ab initio approach based on density functional theory was adopted, and the WIEN2k program was used to evaluate the physical characteristic of the system. The stability of YCdMnH6 and YCdTcH6 is confirmed, where structural analysis for thermodynamic stability and phonon dispersion for dynamic stability both prove stability at the optimized lattice parameters 6.8095 Å and 7.0023 Å. Both compounds are indirect band gap semiconductors based on electronic band structure analysis performed using the PBE-GGA and mBJ-GGA functional. The results of mechanical simulations confirm that these substances are stable and brittle with anisotropic properties. Furthermore, high potential for optoelectronic application is suggested by the dielectric constants and optical results. For energy application purposes, the gravimetric hydrogen storage capacities were calculated to be 2.31%, and 1.98% for YCdMnH6, and YCdTcH6, respectively. We demonstrate through our computational investigation that YCdMnH6 and YCdTcH6 hydrides are thermally stable, with the formation enthalpy of −2.64 eV/atom and −2.63 eV/atom. According to the present analysis, YCdXH6 compounds demonstrate applicability for use in solid-state hydrogen storage, sustainable energy conversion systems, and optoelectronic devices.
PurposeIn this paper, the impact of supply chain (SC) analytics on SC performance, SC ambidexterity and SC transparency in textile sector enterprises will be experimentally evaluated. Its goal is to investigate how SC transparency and ambidexterity could act as mediators.Design/methodology/approachData were acquired from 233 respondents who work in administrative positions for textile enterprises. Amos software was utilized in conjunction with the Structural Equation Modeling (CB-SEM) approach to evaluate the proposed formulated hypotheses using the deductive method. A convenience sampling method was used.FindingsThe findings demonstrate that SC analytics enhances SC performance, ambidexterity and transparency. They also attest to the positive indirect benefits that SC transparency and ambidexterity have on performance.Originality/valueThis research extends the usage of the resource-based view to investigate the previous effects of SC ambidexterity, SC transparency and SC performance using SC analytics. This paper offered a notable theoretical and management addition to the SC literature, filled in research gaps, and built a fresh theoretical and empirical model.
Chemically ordered quaternary MAX phases offer a route to tailor stiffness, anisotropy, and transport in layered carbides. Using all-electron FP-LAPW DFT (GGA-PBE), we investigate V2ZrSiC2 and Ti2ZrSiC2 in alpha- and beta-stacking variants. EOS fits show strong stacking sensitivity: alpha polytypes are stiffer (bulk moduli similar to 216 GPa for V2ZrSiC2 and similar to 192 GPa for Ti2ZrSiC2) than beta polytypes (similar to 178 and similar to 157 GPa). Elastic constants satisfy the Born criteria, and VRH averages indicate higher shear/tensile rigidity and hardness for Ti2ZrSiC2 (G approximate to 136 GPa, E approximate to 328 GPa, and HV approximate to 21 GPa) than that for V2ZrSiC2 (G approximate to 121 GPa, E approximate to 305 GPa, and HV approximate to 14 GPa), while V2ZrSiC2 retains higher incompressibility (B approximate to 214 GPa). Both phases are metallic with transition-metal d states dominating near EF, and phonon dispersions show no imaginary modes along the sampled path. Quasi-harmonic Debye-Gr & uuml;neisen results yield Theta D similar to 669 K (V2ZrSiC2) and similar to 726 K (Ti2ZrSiC2); Slack-type estimates give kph similar to 10-11 W m-1 K-1 at 300 K with an approximate 1/T decrease. The computed linear CTE at 1300 K (alpha L approximate to 0.95 and 1.06 & times; 10-5 K-1) lies between those of representative alpha-Al2O3 and YSZ, suggesting screening-level thermo-expansion compatibility for coating-stack layers. Energies above the convex hull are Delta Ehull similar to 0.10-0.19 eV per atom, indicating metastability at T = 0 K with respect to competing phases and motivating further synthesis-focused thermodynamic analysis alongside oxidation and interface-stability assessment.
Purpose This study examines the relationship between environmental, social and governance (ESG) performance and corporate cash holdings in EU-listed firms, along with the moderating role of board gender diversity. It goes beyond prior studies by jointly modeling ESG–liquidity dynamics and board diversity within a unified theoretical framework, using one of the largest multi-country EU datasets post-CSRD implementation. Design/methodology/approach Using regression analysis and mixed-effects (REML) regression models, the study analyzes 4,365 firm-year observations from 14 EU countries. Findings Firms with higher ESG scores hold larger cash reserves, and gender-diverse boards amplify this relationship, supporting agency and stakeholder theories. The resource-based view is extended, showing gender diversity enhances board capabilities for liquidity strategies. Contrary to some literature, ESG does not deplete liquidity in the EU's regulatory context. Research limitations/implications Reliance on self-reported ESG scores may introduce subjectivity, and the EU focus limits generalizability. Future research could explore non-European markets or alternative governance and liquidity proxies. Practical implications Firms need to integrate ESG and gender equality into their governance in order to support financial resilience. Policymakers need to support ESG disclosure and diversity policies, and investment managers need to use factors to evaluate prudence in finance, while corporate leaders can use board diversity as a governance lever to strengthen liquidity buffers without compromising sustainability commitments. Originality/value The originality of this study lies in its integrated analysis of ESG performance and corporate cash-holding behavior under the moderating influence of board gender diversity, a perspective rarely examined in EU settings after CSRD enforcement. It advances agency, stakeholder and resource-based theories by showing how inclusive governance transforms ESG practices into financial resilience.
