Search Results (1,598)

In-flight icing presents a critical safety hazard for unmanned aerial vehicles (UAVs), resulting in ice accumulation on propeller surfaces that compromise UAV aerodynamic performance and operational integrity. While hybrid anti-/de-icing systems (i.e., combining active heating with passive superhydrophobic coatings) have been developed recently to efficiently address this challenge, conventional active heating sub-systems utilized in the hybrid anti-/de-icing systems face significant limitations when applied to curved geometries of UAV propeller blades. This necessitates the development of innovative self-heating superhydrophobic coatings that can conform perfectly to complex surface topographies. Carbon-based electrothermal coatings, particularly those incorporating graphite and carbon nanotubes, represent a promising approach for ice mitigation applications. This study presents a comprehensive experimental investigation into the development and optimization of a novel self-heating carbon nanotube (CNT)-based superhydrophobic coating specifically designed for UAV icing mitigation. The coating’s anti-/de-icing efficacy was evaluated through a comprehensive experimental campaign conducted on a rotating UAV propeller under typical glaze icing conditions within an advanced icing research tunnel facility. The durability of the coating was also examined in a rain erosion test rig under the continuous high-speed impingement of water droplets. Experimental results demonstrate the successful application of the proposed sprayable self-heating superhydrophobic coating in UAV icing mitigation, providing valuable insights into the viability of CNT-based electrothermal coatings for practical UAV icing protection. This work contributes to the advancement of icing protection technologies for un-manned aerial systems operating in adverse weather conditions. Full article

Traditional polyurethanes have gained widespread application due to their excellent mechanical properties, wear resistance, and processability. However, these materials are susceptible to cracking or fracture under environmental stresses. In recent years, self-healing polyurethanes have garnered significant attention as a critical research field owing to their key capabilities, such as repairing physical damage, restoring mechanical strength, structural adaptability, and cost-effective manufacturing. This review systematically examines the healing mechanisms, structural characteristics, and performance metrics of self-healing polyurethanes, with in-depth analysis of their repair efficacy across various applications—particularly in flexible electronic devices. It demonstrates that self-healing polyurethanes overcome traditional failure modes in flexible electronics through self-repair-function integration mechanisms. Their stimuli-responsive healing behavior is driving the evolution of this field toward an intelligent regenerative electronics paradigm. Full article

Background. Parkinson’s Disease (PD) is a neurological condition that can severely impair gait, often through changes to gait parameters including stride length, velocity, and variability. Therapeutic interventions such as Rhythmic Auditory Stimulation (RAS^®) target gait dysfunction in PD by using the regular beat of music or metronome clips to cue normalized walking patterns. Previous research has suggested that auditory cue properties (e.g., familiarity and groove) and individual factors (e.g., beat perception ability and susceptibility to dual-task interference) influence auditory cueing treatment efficacy in healthy young and older adults; however, optimization of rhythmic cueing across individuals with PD remains understudied. Methods. To address this, we explored the effects of familiarity, groove, beat perception ability, and synchronization instructions on gait in patients with PD during accelerated auditory cues. Individuals with idiopathic PD were randomized to walk freely or synchronized to music and metronome cues played 10% faster than their baseline walking cadence. Musical stimuli varied in self-reported familiarity and perceived groove and beat perception ability was assessed to classify participants as good or poor beat perceivers. Results. Overall, high-groove music and synchronized walking elicited faster gait patterns compared to low-groove music and free walking, respectively, as demonstrated by increased gait velocity and cadence. Familiarity and beat perception ability did not significantly affect gait in individuals with PD. Discussion. Altogether, our results indicate that high-groove music and synchronized walking lead to the greatest gait improvements during cueing, regardless of beat perception ability. Conclusion. Future studies and clinical interventions should consider stimulus type and synchronization instructions when implementing cueing therapies for gait dysfunction in PD in order to optimize treatment responses. Full article

Background: There are very few reviews on how children’s food allergy is managed across various educational settings, and none have considered psychological support in addition to child safety. This scoping review aimed to understand interventions to manage food allergy, addressing children’s safety and psychological support in childcare centres, preschools, and schools. Methods: Following the JBI methodology for scoping reviews and applying the PCC (population, concept, and context) mnemonic, a search was conducted via Medline (Ovid), Embase (Ovid), CINAHL (EBSCOhost), ERIC (ProQuest), PsychInfo (EBSCOhost), Scopus, and ProQuest Dissertations and Theses (ProQuest). Furthermore, two supplementary searches were conducted: first, backward citation tracking of all publications included in this review; and second, a search of seven peak allergy organisation websites, including Allergy & Anaphylaxis Australia and the World Allergy Organization. Findings: Eighteen publications were included from 6812 records retrieved from the databases. Most publications were from the United States of America (61%), representing food allergy management mainly in schools (39%), followed by preschools (22%), childcare centres (17%), and mixed settings (11%). All the interventions focused on child physical safety, largely neglecting psychosocial support for children or their families, and only four publications reported the use of control groups to test intervention benefits (22%). Furthermore, safety-focused interventions were centred on building educator or staff knowledge of food allergy and their skills, confidence, and self-efficacy to manage it (72%); these were found to be highly effective. Most interventions were aimed at adults, and none considered children. Interpretation: The findings suggest a need for more research on food allergy management involving child-focused, developmentally appropriate approaches, especially in childcare and preschool settings. There is also a need for research on psychological support, particularly that which involves control groups and encompasses different nations. Full article

This study investigates the psychological and emotional mechanisms underlying women’s reactions to breast cancer awareness advertisements through the dual lens of Protection Motivation Theory (PMT) and neuromarketing methods, addressing a gap in empirical research on the integration of biometric and cognitive approaches in health marketing. Utilizing a lab-based experiment with 78 women aged 40 and older, we integrated Facial Expression Analysis using Noldus FaceReader 9.0 with semi-structured post-exposure interviews. Six manipulated health messages were embedded within a 15 min audiovisual sequence, with each message displayed for 5 s. Quantitative analysis revealed that Ads 2 and 5 elicited the highest mean fear scores (0.45 and 0.42) and surprise scores (0.35 and 0.33), while Ad 4 generated the highest happiness score (0.31) linked to coping appraisal. Emotional expressions—including fear, sadness, surprise, and neutrality—were recorded in real time and analyzed quantitatively. The facial analysis data were triangulated with thematic insights from interviews, targeting perceptions of threat severity, vulnerability, response efficacy, and self-efficacy. The findings confirm that fear-based appeals are only effective when paired with actionable coping strategies, providing empirical support for PMT’s dual-process model. By applying mixed-methods analysis to the evaluation of health messages, this study makes three contributions: (1) it extends PMT by validating the emotional–cognitive integration framework through biometric–qualitative convergence; (2) it offers practical sequencing principles for combining threat and coping cues; and (3) it proposes cross-modal methodology guidelines for future health campaigns. Full article

Although a wealth of research has examined the predictors influencing the discrepancies between individual-set and parent-set career goals (DBIPCG), investigations grounded in collectivist cultural perspectives remain relatively scarce. Within collectivist societies, filial piety holds profound cultural significance. Drawing on a dual filial piety framework encompassing reciprocal filial piety (RFP) and authoritative filial piety (AFP), this study aims to explore the interconnections among parental support, self-efficacy in career decision-making, dual filial piety orientations, and DBIPCG. The results indicated that parental support was negatively associated with DBIPCG. By contrast, self-efficacy in career decision-making did not predict DBIPCG directly. Instead, self-efficacy indirectly influenced DBIPCG, an effect mediated specifically by AFP rather than RFP, Furthermore, AFP was found to mediate the link between parental support and DBIPCG. These findings underscore the role of parental support in minimizing differences in career goal formation between generations and highlight the potentially adverse implications of AFP in exacerbating such discrepancies. Full article

Background/Objectives: Lucid dreaming (LD), during which the dreamer becomes aware of the dream state, offers a unique opportunity for a variety of applications, including motor practice, personal well-being, and nightmare therapy. However, these applications largely depend on the dreamer’s ability to control their dreams. While LD research has traditionally focused on induction techniques to increase dream frequency, the equally important skill of dream control remains largely underexplored. This study provides an exploration into the mechanisms of LD motor practice, dream control, and its potential influencing factors. We specifically examined whether a complex motor skill—juggling—could be performed during LD, calling for relatively high levels of dream control and access to procedural memory. Methods: Four healthy participants underwent overnight polysomnography (PSG), provided detailed dream reports, and completed questionnaires assessing dream control and self-efficacy. Dream-task success was assessed using predefined in-dream motor performance criteria. Differences between high and low LD control participants were examined, and two detailed case reports of lucid dream juggling attempts provide insight into the challenges of executing complex motor tasks during LD. Results: Dream control varied between and within participants. Both dream control and self-efficacy seemed to predict participants’ ability to execute the LD motor task. Conclusions: Despite the low sample size, this study highlights the potential roles of individual traits like self-efficacy in shaping dream control abilities and motor performance during LD. By using empirical, task-based measures, this study helps build the foundation for future research aimed at optimizing LD applications in clinical and non-clinical fields. Full article

In fragile and unstable regions, entrepreneurship education is increasingly viewed as the path to economic resilience and youth empowerment. However, research indicates that there is relatively little empirical evidence on how entrepreneurial education promotes entrepreneurial intention and behavior, especially in situations of uncertainty and a lack of resources. This study explores this relationship based on a sample of 402 Palestinian university students and graduates, applying the Partial Least Squares Structural Equation Modeling (PLS-SEM). The study concludes that entrepreneurial education has a positive influence on students’ self-efficacy, attitudes toward entrepreneurship, and their perception of the entrepreneurial environment. Self-efficacy was found to be the most potent mediating factor of entrepreneurial intent, closely followed by attitude. Although intention is a good predictor of action, the relationship is modest, which illustrates a clear intention-action gap. The study also reports that entrepreneurial education indirectly affects actions by shaping environmental perception, and that its total influence on entrepreneurial action operates primarily through these psychological and contextual pathways. Furthermore, the availability of resources has a significant moderating effect, as students having strong intentions are more likely to act when there is a strong perception that sufficient support and resources are available to them. The research builds on the Theory of Planned Behavior and complements related work on the intention–action gap, by considering a combination of psychological and contextual influences. Additionally, it offers actionable recommendations for policy-makers, educators, and development practitioners working to realize youth aspiration in fragile economies through integrated, context-appropriate entrepreneurship interventions. Full article

The burden of depression is a public health concern, and traditional treatment approaches to mental health alone may be insufficient. The effects of contact with nature on wellbeing have been shown to reduce stress and improve mood, emotional wellbeing and mental health difficulties. Thus, self-guided nature-based interventions (NBIs) present a promising approach to improving mental health and wellbeing. However, there is limited evidence on the development of such interventions. This two-armed pilot randomised controlled trial aimed at determining the feasibility, acceptability and preliminary efficacy of a novel, 4-week, self-help NBI (Roots and Shoots©). Forty-seven participants were randomised (1:1) to either receive the Roots and Shoots intervention or a waitlist control. Participants in both conditions completed measures including wellbeing (primary outcome) and depressive symptoms, rumination, sleep and nature relatedness (secondary outcomes) at three timepoints: baseline (T0), 2 weeks (T1) and 4 weeks (T2). Those who completed the intervention period reported high acceptability and satisfaction with the intervention. The findings from this pilot study indicate potential for improvements in wellbeing following the intervention, which appears reasonably feasible and acceptable. Future research is warranted to further investigate the efficacy of this novel NBI in a larger, powered clinical trial. Full article

Transparent coatings with superwetting properties (superhydrophilicity or superhydrophobicity) have broad application prospects. Usually, most studies have been carried out separately on superhydrophobic coatings or superhydrophilic coatings. In our work, superhydrophilic transparent coatings were prepared by the four-mercapto and four-polyethylene glycol monomethyl acrylate modified POSS (POSS-(SH)₄-(PEGMA)₄) (designated as I-coating) as well as superhydrophobic transparent coating (designated as O-coating) were prepared with the mercapto and seven-heptyl decafluoroheptyl acrylate modified POSS (POSS-SH-(DFMA)₇). The similarities and differences in anti-fogging, stain resistance, self-cleaning and anti-biological application between superhydrophobic and superhydrophilic coatings were compared systematically. The results show that superhydrophilic coatings performed better at preventing fog and facilitating self-cleaning; nevertheless, superhydrophobic coatings exhibited superior efficacy in the removal of contaminants such as markers and lipsticks. Both superwetting coatings demonstrated proficiency in self-cleaning and in deterring biological adhesion with respect to low-viscosity oil droplets. The relevant research of this paper provided a reference for the subsequent study on the advantages and disadvantages of superhydrophilic and superhydrophobic as well as its specific application. Full article

Self-care is a critical component of chronic disease management and is linked to better health outcomes. The Hypertension Self-Care Profile (HBP SCP) is one of the few validated instruments designed to assess not only behaviors but also self-efficacy and motivation in HBP self-care. This scoping review synthesized published research using the HBP SCP to examine its scope and utility across diverse populations. A total of 48 studies were reviewed—34 non-validation studies and 14 validation studies—spanning regions including Asia, the Middle East, and the Americas. The HBP SCP showed strong psychometric performance across multiple cultural adaptations, with Cronbach’s alpha values ranging from 0.73 to 0.99. Several correlates of HBP self-care emerged, including self-efficacy, social support, health literacy, and education. Findings also revealed that HBP self-care remains suboptimal, particularly among rural populations and low- and middle-income countries. The HBP SCP has proven to be a versatile and culturally adaptable instrument for evaluating HBP self-care behaviors, self-efficacy, and motivation. Its consistently demonstrated validity and reliability across diverse contexts, combined with its responsiveness in randomized controlled trials, affirm its value as both a clinical assessment tool and a research outcome measure in interventions aimed at improving cardiovascular health. Full article

Background/Objectives: This scoping review aimed to define goal-directed training (GDT) and its impact on outcomes for children with cerebral palsy (CP), and to develop a structured framework outlining its core components for effective implementation. Methods: Using the Arksey and O’Malley framework and PICO criteria, nine databases were searched and reference lists reviewed. Two reviewers independently screened and extracted data, which were analyzed using a qualitative descriptive approach. Results: From 1273 articles, 156 met inclusion criteria, including 112 efficacy studies (53 randomized trials, 53 non-randomized trials, 6 secondary analyses) involving 4708 children aged 3 months to 21 years (mean age 6.7 years). Interventions addressed all GMFCS and MACS levels. Ninety outcome measures across ICF domains were used. GDT was associated with improvements in motor function, hand use, self-care, communication, and participation. Findings were synthesized into an eight-step GDT framework highlighting collaborative goal setting, goal analysis, strategy determination, structured practice, feedback, re-evaluation, and generalization. This framework supports consistent, high-quality GDT implementation across settings and disciplines. Conclusions: In conclusion, GDT shows broad functional benefits and emphasizes individualized, client-centered care. The review offers a practical, evidence-informed framework to guide clinicians and researchers in delivering GDT with fidelity. Full article

Background: Exposure-based cognitive behavioral therapy (Ex-CBT) is widely seen as the gold-standard treatment for anxiety and obsessive-compulsive disorder (OCD). Yet, minoritized youth are underrepresented in efficacy studies, raising questions about the applicability of Ex-CBT to minoritized youth. Effectiveness data suggest systematic adaptation of Ex-CBT to address youth culture and context is likely needed, and many clinicians make adaptations and augmentations in practice. However, research on the specific strategies clinicians use to address their youth clients’ culture and context within anxiety and OCD treatment is lacking. In the current study, we assess practice-based adaptations, augmentations, and process-based approaches utilized when delivering treatment to youth for OCD and anxiety in public mental health clinics. Methods: We conducted qualitative interviews with 16 clinicians from both specialty anxiety and general mental health clinics serving youth with anxiety or OCD in the public mental health system. Participating clinicians had a mean age of 32.19 (SD = 5.87) and 69% of therapists identified as female; 69% identified as White, 25% identified as Asian, and 6% as Black or African American. In qualitative interviews, clinicians shared how they addressed clients’ culture and context (e.g., social identities, stressors and strengths related to social identities and lived environment). Thematic analysis identified the strategies clinicians employed to address culture and context. Results: Clinicians reported incorporating culture and context through process-based approaches (e.g., building trust gradually, considering clients’ social identity stressors, engaging in self-awareness to facilitate cultural responsiveness) and through culturally adapting and augmenting treatment to promote person-centered care. Core strategies included proactive and ongoing assessment of clients’ cultural and contextual factors, adapting exposures and augmenting Ex-CBT with strategies such as case management and discussion of cultural context, and taking a systems-informed approach to care. Conclusions: Examining practice-based adaptations, augmentations, and process-based approaches to treatment for minoritized youth with OCD or anxiety can inform efforts to understand what comprises person-centered culturally responsive Ex-CBT. Empirical testing of identified strategies is a needed area of future research. Full article

Addressing global challenges such as climate change and inequality requires convergence competencies that enable learners to devise sustainable solutions. Such competencies have been emphasized in Science, Technology, Engineering, Mathematics (STEM) fields, but empirical research and assessment tools tailored to Humanities, Arts, and Social Sciences (HASS) remain scarce. This study aimed to develop and validate a self-assessment tool to measure convergence competencies among HASS learners. A three-round Delphi survey with domain experts was conducted to evaluate and refine an initial pool of items. Items with insufficient content validity were revised or deleted, and all retained items achieved a Content Validity Ratio (CVR) of ≥0.800, with most scoring 1.000. The validated instrument was administered to 455 undergraduates participating in a convergence education program. Exploratory factor analysis identified five key dimensions: Convergent Commitment, Future Problem Awareness, Future Efficacy, Convergent Learning, and Multidisciplinary Inclusiveness, explaining 69.72% of the variance. Confirmatory factor analysis supported the model’s goodness-of-fit (χ² (160) = 378.786, RMSEA = 0.054, CFI = 0.952), and the instrument demonstrated high internal consistency (Cronbach’s α = 0.919). The results confirm that the tool is both reliable and valid for diagnosing convergence competencies in HASS contexts, providing a practical framework for interdisciplinary learning and reflective engagement toward sustainable futures. Full article

The Statistics Anxiety Rating Scale (STARS) is a 51-item scale commonly used to measure college students’ anxiety regarding statistics. To date, however, limited empirical research exists that examines statistics anxiety among ethnically diverse or first-generation graduate students. We examined the factor structure and reliability of STARS scores in a diverse sample of students enrolled in graduate courses at a Minority-Serving Institution (n = 194). To provide guidance on assessing dimensionality in small college samples, we compared the performance of best-practice factor analysis techniques: confirmatory factor analysis (CFA), exploratory structural equation modeling (ESEM), and Bayesian structural equation modeling (BSEM). We found modest support for the original six-factor structure using CFA, but ESEM and BSEM analyses suggested that a four-factor model best captures the dimensions of the STARS instrument within the context of graduate-level statistics courses. To enhance scale efficiency and reduce respondent fatigue, we also tested and found support for a reduced 25-item version of the four-factor STARS scale. The four-factor STARS scale produced constructs representing task and process anxiety, social support avoidance, perceived lack of utility, and mathematical self-efficacy. These findings extend the validity and reliability evidence of the STARS inventory to include diverse graduate student populations. Accordingly, our findings contribute to the advancement of data science education and provide recommendations for measuring statistics anxiety at the graduate level and for assessing construct validity of psychometric instruments in small or hard-to-survey populations. Full article