Search Results (2,622)

This study investigated Chinese EFL students’ behavioral intentions to learn English using AI-based chatbots. A total of 1052 questionnaire responses were collected from Chinese students. Structural equation modeling (SEM) was employed to assess the measurement model and test the proposed relationships. The results showed that facilitating conditions, social influence, performance expectancy, and effort expectancy were salient factors associated with students’ intentions to use AI chatbots. These UTAUT factors were also significantly related to information quality and AI trust. Information quality was positively associated with both AI trust and intention to use, while AI trust was directly associated with behavioral intention. In addition, information quality and AI trust mediated the relationships between the UTAUT factors and behavioral intention. Moderation analysis indicated that technological consciousness positively moderated the relationship between information quality and behavioral intention, but did not moderate the relationship between AI trust and behavioral intention. Internet experience also strengthened the positive relationships between information quality, AI trust, and behavioral intention. Finally, theoretical and practical implications are discussed, and limitations are highlighted. Full article

Stevia (Stevia rebaudiana Bertoni) is an important source of natural sweeteners. Since its commercial value depends on steviol glycosides, quality assessment primarily involves quantifying these compounds in leaves and shoots. While chromatography is the standard analytical method, it is labor-intensive and time-consuming; it involves multiple processing steps that may cumulatively introduce errors and remains relatively expensive. Although chromatography remains the most accurate method, this exploratory study evaluates the potential of using spectroscopy as an auxiliary method for the approximate assessment of steviol glycoside content. Leaf reflectance spectroscopy could be a simpler and more cost-effective approach. However, relationships between leaf reflectance and steviol glycoside content are indirect and mediated by physiological processes. To account for these indirect dependencies, cumulative UVB exposure was included as an additional feature because it influences both leaf optical properties and plant metabolic processes. A low-cost spectrometer was utilized as the measuring instrument. The study was conducted over a period of three months on 77 S. rebaudiana clones, divided into four groups based on their level of UVB irradiance (control without irradiation, 400, 600, and 800 μW m⁻²). Based on the collected data, linear and polynomial regression, Random Forest, XGBoost, PLSR, and ElasticNetCV models were trained. Cumulative UVB exposure was found to be the most important feature. Of the spectral features, the most informative for assessing the content of steviol glycosides were spectral indicators in the far-red and near-infrared (NIR) ranges. Our results indicate a detectable relationship, with Random Forest being the best-performing model and achieving a moderate predictive performance (R² = 0.66). Despite their limited predictive performance, the models demonstrate that leaf reflectance spectra combined with cumulative UVB exposure contain information related to steviol glycoside content. These findings support further investigation of remote sensing approaches for crop quality assessment. Full article

School discipline disproportionately affects Black students and is associated with diminished academic outcomes. However, the mechanisms through which exclusionary discipline constrains college/university degree attainment—and the role of mental health in this pathway—remain underexplored with longitudinal data from a large urban birth cohort. This study examines whether depressive symptoms mediate the relationship between high school discipline and college/university degree attainment, and whether this mediation pathway varies by race and sex. Using data from the Future of Families and Child Wellbeing Study (N = 1417), I employed generalized structural equation modeling (GSEM) to test a serial mediation model: school discipline (Year 15) → depressive symptoms (Year 15) → college-going behaviors (Year 15) → college/university degree attainment (Year 22). Bootstrap confidence intervals (1000 replications) tested indirect effects. Moderation analyses examined whether the mediation pathway differed by race, sex, and depressive symptoms’ severity. School discipline significantly predicted higher depressive symptoms (b = 0.46, p = 0.001), which in turn predicted fewer college-going behaviors (b = −0.02, p = 0.001) and lower odds of college/university degree attainment (OR = 0.89, p = 0.001). The total indirect effect through depressive symptoms was significant (b = −0.06, 95% BC CI [−0.134, −0.017]). Sex, but not race (F = 0.24, p = 0.868), moderated the discipline–depressive pathway: discipline increased depressive symptoms more strongly for females (b = 0.78, p = 0.001) than males (b = 0.21, p = 0.251). Depressive symptoms amplified discipline’s effect on college/university degree attainment (interaction OR = 0.39, p = 0.037). Depressive symptoms partially mediate school discipline’s negative effect on college attainment, with the strongest effects among females. Higher education institutions must prepare to support students whose K-12 experiences were marked by exclusionary discipline. Full article

Psychosocial stressors are increasingly recognized as critical determinants of workplace safety, yet their mechanisms in construction settings remain poorly understood. This study examines how family–work conflict (FWC) is associated with safety behavior among construction workers, with mental and physical fatigue as parallel mediators and perceived supervisor support (PSS) as a moderator. Drawing on Conservation of Resources (COR) theory, cross-sectional data were gathered from 527 construction workers across three regions of Jordan and analyzed using Hayes’ PROCESS macro. The findings indicate that FWC is negatively associated with safety behavior both directly and through its positive associations with elevated fatigue levels. Supervisor support was found to attenuate the FWC-to-physical-fatigue pathway and buffer safety behavior under high-conflict conditions. These associations should be interpreted as statistical patterns consistent with the proposed theoretical model rather than evidence of causal relationships, given the cross-sectional design. Theoretically, the study extends COR theory into occupational safety by distinguishing two fatigue dimensions and demonstrating a boundary condition for resource loss. Practically, the findings support supervisor-led safety programs and organizational fatigue management as complementary strategies for addressing psychosocial risk factors in high-risk construction environments. Full article

Background: Recovery after major head-and-neck reconstruction extends beyond flap survival and wound closure, involving swallowing, psychological adaptation, body image, and overall quality of life. Integrated multidimensional assessments remain limited in routine reconstructive outcomes research. Aim: The aim of this study was to characterize and compare six-month multidimensional recovery—clinical, functional, nutritional, psychological, and body-image outcomes—between microvascular free-flap and regional pedicled-flap reconstruction and to identify factors that stratify risk for persistent functional and psychosocial impairment. Methods: We conducted a single-center prospective cohort study at the “Victor Babeș” University of Medicine and Pharmacy, Timișoara, Romania, enrolling 87 adults undergoing major reconstructive surgery after ablative treatment of head-and-neck defects (52 microvascular free flaps; 35 regional pedicled flaps). Patients were assessed at baseline and 6 months using the SF-36, WHOQOL-BREF, Body Image Scale (BIS), HADS, PHQ-9, GAD-7, Functional Oral Intake Scale (FOIS), speech intelligibility, and PEG/tracheostomy dependence. Results: At 6 months, most SF-36 and WHOQOL-BREF domains improved with moderate effect sizes (d = 0.3–0.7; all p ≤ 0.009), and body image distress decreased significantly (ΔBIS −2.9 ± 4.6; p < 0.001), whereas social functioning showed no robust gain (p = 0.098; not surviving false-discovery-rate correction). Pedicled reconstruction was associated with higher PEG dependence (37.1% vs. 9.6%; p = 0.005) and worse FOIS (4.7 ± 1.4 vs. 5.6 ± 1.2; p = 0.003). Major complications were linked to blunted or worsening psychological trajectories and a threefold higher rate of clinically significant depression (HADS-D ≥ 11: 66.7% vs. 18.7%; p = 0.001). In a reduced four-predictor multivariable model, pedicled flap (aOR 4.6), adjuvant radiotherapy (aOR 2.8), major complication (aOR 3.3), and lower baseline FOIS (aOR 0.5 per point) were independently associated with PEG dependence (optimism-corrected AUC 0.79). Clustering identified three recovery phenotypes—functional/emotional responders, psychological/body-image responders, and global slow recovery—with significantly different PEG rates (5.9%, 21.4%, 40.0%; p = 0.006). Exploratory mediation analysis suggested that the association between reconstruction technique and mental quality-of-life recovery was partly statistically accounted for by swallowing and body-image improvement. Conclusions: Recovery after major head-and-neck reconstruction is multidimensional and heterogeneous. Baseline swallowing function, reconstruction technique, radiotherapy, and major complications jointly stratify risk for persistent functional and psychosocial impairment, supporting risk-adapted multidisciplinary rehabilitation and early psycho-oncologic screening. Full article

Grounded in dynamic capability theory, this research examines the impact of AI-enabled logistics optimization (ALO) on logistics process efficiency (LPE) and sustainable supply chain performance (SSCP). It further explores the mediation of LPE and the moderation of environmental uncertainty (EU). A structured online questionnaire was distributed to 600 participants via stratified random sampling from June to December 2025, resulting in 380 valid responses, and was analyzed using structural equation modeling. The results include a significant influence of ALO on LPE and SSCP. In addition, LPE significantly affects SSCP and partially mediates the ALO–SSCP relationship. Additionally, the EU significantly moderates the ALO–SSCP relationship, identifying that ALO becomes more performance-related under a volatile and uncertain operational environment. The research is based on cross-sectional survey data with self-reported outcomes. Future research is recommended to employ longitudinal or multi-source research methods. It also suggested examining other mechanisms for dynamic capabilities (e.g., agility, resilience) across several sectors. The results of this research extend dynamic capability by elucidating when (under the EU) and how (via LPE) ALO transforms into SSCP. Full article

Against the dual objectives of food security and sustainable agriculture, this study examines how agricultural machinery services—China’s primary organized mode of agricultural production—affect agricultural carbon emissions. Using panel data covering 30 provinces in China from 2010 to 2022, this study applies two-way fixed effects, mediation, and moderation models to investigate the effects of these services on carbon emissions as well as the mechanisms involved. The results show: (1) Both carbon emissions and the level of machinery services in China differ by region and over time. Carbon emissions are stabilizing, while machinery services are steadily improving. Both variables cluster in certain areas. (2) Machinery services exhibit a significant inverted U-shaped impact on carbon emissions. As the level of machinery services grows, emissions first rise, then fall. (3) The emission reduction impact of machinery services varies widely. It differs across topographic relief, farmland types, and grain crop types, but the inverted U-shaped relationship remains in most cases. (4) The efficiency of the division of labor and agricultural chemical input intensity partly explain the effect. They help reduce emissions by enabling labor substitution and lower input levels. (5) Large-scale agricultural operations strongly influence how machinery services affect carbon emissions. To accelerate the low-carbon sustainable transformation of Chinese agriculture, efforts should prioritize establishing a differentiated, regionally tailored agricultural machinery socialized service system, improving service efficiency and green development capacity, and optimizing large-scale land management structures. Full article

Decarbonising the built environment has increased the importance of prefabricated construction, yet its cost and resource efficiency are still constrained by fragmented supply chain collaboration. This study examines how lifecycle supply chain collaboration affects cost control performance in prefabricated construction. Based on supply chain management theory and expert consultation, a conceptual model was developed and tested through structural equation modelling using 517 valid responses from stakeholders in China’s prefabricated construction supply chain. The results show that management factors across all four project phases (decision and design, component production, transportation, and construction and installation) significantly improve cost control performance, with design standardisation, production scheduling, transport logistics, quality assurance, and workforce proficiency as key drivers. Process coordination exerts a significant mediating effect, while environmental factors significantly moderate the relationships. In practical terms, the findings indicate that stakeholders should prioritise design standardisation at the early stage, strengthen coordination across production, transport, and installation activities, and enhance quality control and workforce training to reduce avoidable cost overruns and resource waste. Beyond their theoretical contribution to research on supply chain collaboration in prefabricated construction, these results offer concrete direction for practitioners seeking to improve cost efficiency and make better use of resources within industrialised building systems. Full article

The study examines the relationship between Corporate Social Responsibility (CSR) adoption and firms’ future CSR investment, with a particular focus on the mechanisms and conditions that shape this relationship, drawing on the business case perspective and the resource-based view. A quantitative research design was employed using survey data collected from 568 business executives in Greece. Structural Equation Modeling (SEM) was applied to test the proposed relationships. The findings indicate that CSR adoption has a significant positive impact on future CSR investment, confirming that CSR engagement evolves into a sustained strategic commitment. Perceived benefits are found to play significant mediating roles, suggesting that firms increase future CSR investment when they recognize the value generated by CSR. In contrast, institutional barriers negatively moderate this relationship, weakening the effect of CSR adoption. The study demonstrates that the continuation of CSR investment is driven by internal reinforcement mechanisms and external conditions rather than purely by financial constraints. It offers empirical evidence that CSR adoption initiates a self-reinforcing process supported by perceived value decisions. The findings provide practical insights, emphasizing the importance of strengthening institutional frameworks and enhancing the perceived benefits of CSR to foster long-term investment in sustainable business practices. Full article

While the operational benefits of Artificial Intelligence (AI) are well-documented, the mechanisms through which firms leverage AI for strategic exploration and radical innovation remain under-theorized. This study addresses the “black box” of AI value creation by integrating the Technology–Organization–Environment (TOE) framework with the Dynamic Capabilities View (DCV). We propose that AI adoption is not a direct antecedent to performance but a multi-stage process wherein technological, organizational, and environmental factors enable the development of sensing capability, which in turn fosters a novel capability we term “AI-Enabled Exploration.” Analyzing survey data from 245 senior executives in Saudi Arabia, a high-growth economy undergoing state-led digital transformation, we employed Partial Least Squares Structural Equation Modeling (PLS-SEM) to test the model. The results confirm a serial mediation chain: organizational readiness and technology compatibility drive sensing capability, which subsequently powers AI-enabled exploration to enhance innovation performance. Contrary to expectations, government support was not a significant predictor of sensing capability, suggesting that in resource-rich environments, external incentives are necessary but insufficient for capability building. Furthermore, competitive pressure was found to positively moderate the relationship between organizational readiness and exploration, acting as a critical catalyst that converts latent resources into active experimentation. These findings offer a theoretical roadmap for firms attempting to transition from AI-driven efficiency to AI-driven ambidexterity. Full article

This study investigates the psychological and contextual mechanisms through which consumers’ awareness of agriculture’s contribution to climate change translates into a willingness to pay (WTP) for low-carbon agricultural products. Drawing on data from Eurobarometer 93.2 (ZA7739; N = 24,193), the research applies a moderated mediation model (Hayes’ PROCESS Model 14) to examine the mediating role of support for mandatory environmental labelling and the moderating effect of residential context. The results indicate that climate change awareness is significantly and positively associated with WTP. Moreover, support for mandatory labelling partially mediates this relationship, suggesting that institutionalized transparency may serve as a key mechanism through which environmental concern becomes economically actionable. The findings further reveal that this indirect effect is moderated by the level of urbanization, being stronger in urban areas than in rural settings. This highlights the importance of socio-spatial context in shaping consumer responses to sustainability information. Overall, the study contributes to the literature on sustainable consumption by demonstrating that willingness to financially support low-carbon agriculture depends not only on environmental awareness but also on trust-enhancing policy instruments and contextual factors. The findings offer important implications for policymakers aiming to promote sustainable food systems through information-based regulation. Full article

Background: Transformational leadership positively influences safety climate perceptions. Transformational leadership has four dimensions, and safety climate can be operationalized at different levels. Few research efforts, however, have been made to investigate the association between specific transformational leadership dimensions and safety climate at the individual level (i.e., psychological safety climate, PSC). Methods: Drawing on the interactive approach to forming safety climate, this study developed a multiple mediation model linking project team leaders’ intellectual stimulation (IS) to construction personnel’s PSC via safety-specific leader–member exchange (LMX) and team member exchange (TMX). A random sample (N = 292) of construction personnel based in Hong Kong is employed to validate the model. Partial least squares structural equation modeling (PLS-SEM) was used to analyze the data. Results: Both safety-specific LMX (specific indirect effect = 0.189) and safety-specific TMX (specific indirect effect = 0.032) significantly mediate the relationship between IS and PSC, although the direct association between them is insignificant. Age significantly moderates the IS–PSC relationship, with a stronger association for younger personnel (β = 0.481, p < 0.001) than for older personnel (β = 0.195, p = 0.029). Conclusions: The findings reveal that the relationship between IS and PSC is fully mediated by safety-specific LMX and TMX, with vertical exchange (LMX) playing a substantially more prominent mediating role than lateral exchange (TMX). These results suggest that improving construction personnel’s PSC requires developing project team leaders’ intellectually stimulating skills and fostering high-quality leader–follower safety exchange within project teams. Full article

In the new development stage of China’s green and low-carbon transition, agricultural industry agglomeration serves as a key catalyst for sustainable agricultural practices. Its effects on agricultural carbon reduction and energy conservation urgently need investigation. This research uses panel data from 31 Chinese provinces spanning 2005 to 2021 to investigate the nonlinear effects of agricultural industry agglomeration on agricultural carbon emissions and energy consumption, employing econometric models such as the two-way fixed effects model, mediation model, and moderation model. The findings indicate that (1) there’s a clear inverted U-shaped pattern linking agricultural industry agglomeration to both carbon emissions and energy consumption in agriculture; (2) agricultural scale effects and socialized services are key mechanisms; (3) marketization and environmental regulation positively moderate this relationship; and (4) the carbon reduction and energy-saving effects are more pronounced in regions with higher agricultural modernization levels, higher urbanization rates, and plain areas. This finding contributes to optimizing the path of agricultural industry agglomeration and facilitates the synergy of carbon reduction and energy conservation in such agglomeration. Full article

Freshwater aquaculture in China has expanded rapidly in recent decades, raising growing concerns about its environmental sustainability. However, the relationship between industrial agglomeration and environmental efficiency in freshwater aquaculture remains insufficiently understood. Using panel data from 18 major freshwater aquaculture provinces in China from 2009 to 2023, this study investigates the nonlinear effects of industrial agglomeration on environmental efficiency. Environmental efficiency is evaluated using a Global Super-SBM model incorporating undesirable outputs, while industrial agglomeration is measured by the location quotient index. A two-way fixed-effects model is employed for empirical estimation. The results reveal a significant inverted U-shaped relationship between industrial agglomeration and environmental efficiency, with a turning point at an agglomeration level of 2.519. Moderate agglomeration improves environmental efficiency through economies of scale and technology diffusion, whereas excessive agglomeration generates crowding effects that reduce efficiency. Further mechanism analysis shows that technology diffusion, proxied by the number of trained fishermen, plays a significant mediating role in this relationship. This study provides new empirical evidence on the nonlinear environmental effects of industrial agglomeration in freshwater aquaculture and offers policy implications for optimizing industrial spatial layout and developing differentiated environmental regulations to support the green and sustainable development of the sector. Full article

This study examines how the relationship between perceived financial accounting disclosures (FAD) and investor reactions to negative financial news (IRNFN) is conditioned by two individual-level moderators among 310 retail investors holding shares in project-based organisations (PBOs) listed on the Dubai Financial Market and Abu Dhabi Securities Exchange. The two moderators are framing bias susceptibility, a cognitive predisposition to be influenced by presentational form, and AI channel reliance (AICR), the extent to which investors rely on AI-mediated information channels—including algorithmic news aggregators, robo-advisory tools, AI-curated social media feeds, and automated sentiment-scored financial alerts—for receiving and interpreting corporate disclosures. Drawing on Behavioural Finance Theory and the Theory of Planned Behaviour, the study investigates whether the strength of the FAD–IRNFN association depends on these cognitive and informational processing conditions. The measurement model was estimated using confirmatory factor analysis in AMOS 25, and the moderation hypotheses were tested through path analysis with mean-centred composite scores and bias-corrected bootstrap inference, with a latent interaction robustness check reported in parallel. AI channel reliance emerged as a substantial moderator of the FAD–IRNFN relationship, while framing bias provided a smaller, marginally significant moderating effect. The findings are consistent with the theoretical expectation that, in AI-mediated information environments, the perceived quality and presentation of complex disclosures are associated with stronger, rather than weaker, investor reactions to negative news. Because the design is cross-sectional and based on self-reported data, the results are interpreted as associations rather than causal effects, with implications for disclosure regulation, corporate communication, and AI platform design in the UAE and comparable emerging markets. Full article